Enable http communication between block validator and validation server

[pmikolajczyk41]

One of the minor changes we had to do to make nitro <-> JIT server communication work, was enabling http connection in the block validator (see https://github.com/OffchainLabs/nitro/pull/4497/changes). Since the underlying rpcclient.RpcClient supports both protocols, this requires only relaxing configuration validation. Proved to work well in #4497.

---

closes NIT-4652

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.75%. Comparing base (d7fe12c) to head (5bc2b59).
⚠️ Report is 62 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4499      +/-   ##
==========================================
- Coverage   34.56%   32.75%   -1.81%     
==========================================
  Files         495      495              
  Lines       58648    58648              
==========================================
- Hits        20272    19212    -1060     
- Misses      34772    36074    +1302     
+ Partials     3604     3362     -242     

[github-actions]

❌ 4 Tests Failed:

Tests completed	Failed	Passed	Skipped
4370	4	4366	0

View the top 3 failed tests by shortest run time

TestRedisProduceComplex/one_producer,_all_consumers_are_active

Stack Traces | 1.270s run time

... [CONTENT TRUNCATED: Keeping last 20 lines]
�[36mDEBUG�[0m[03-12|08:54:58.559] consumer: xdel                           �[36mcid�[0m=b249fd00-40c0-468c-9b1d-acea756c4097 �[36mmessageId�[0m=1773305697408-4
�[36mDEBUG�[0m[03-12|08:54:58.564] consumer: xdel                           �[36mcid�[0m=d59f1182-729d-4536-b35b-a4b28d2b2c8f �[36mmessageId�[0m=1773305697408-0
�[36mDEBUG�[0m[03-12|08:54:58.564] consumer: xdel                           �[36mcid�[0m=69b49c35-59c7-419e-8b9f-6ffab703fd34 �[36mmessageId�[0m=1773305697409-1
�[36mDEBUG�[0m[03-12|08:54:58.564] consumer: xdel                           �[36mcid�[0m=35bb1760-03dd-49a3-9521-1deee88259ca �[36mmessageId�[0m=1773305697407-7
�[36mDEBUG�[0m[03-12|08:54:58.564] consumer: xdel                           �[36mcid�[0m=77d62457-feb4-424a-bf37-86c0ca547177 �[36mmessageId�[0m=1773305697409-0
�[36mDEBUG�[0m[03-12|08:54:58.604] checkResponses                           �[36mresponded�[0m=79 �[36merrored�[0m=0 �[36mchecked�[0m=98
�[36mDEBUG�[0m[03-12|08:54:58.614] redis producer: check responses starting
�[36mDEBUG�[0m[03-12|08:54:58.643] checkResponses                           �[36mresponded�[0m=19 �[36merrored�[0m=0 �[36mchecked�[0m=19
�[31mERROR�[0m[03-12|08:54:58.645] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.647] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[36mDEBUG�[0m[03-12|08:54:58.648] redis producer: check responses starting
�[36mDEBUG�[0m[03-12|08:54:58.649] checkResponses                           �[36mresponded�[0m=0  �[36merrored�[0m=0 �[36mchecked�[0m=0
�[31mERROR�[0m[03-12|08:54:58.649] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.651] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.651] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.651] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.652] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
�[31mERROR�[0m[03-12|08:54:58.652] Error from XpendingExt in getting PEL for auto claim �[31merr�[0m="context canceled" �[31mpendingLen�[0m=0
    pubsub_test.go:408: mergeMaps() unexpected error: duplicate key: 1773305697391-2
--- FAIL: TestRedisProduceComplex/one_producer,_all_consumers_are_active (1.27s)

TestVersion40

Stack Traces | 8.690s run time

... [CONTENT TRUNCATED: Keeping last 20 lines]
        	/opt/hostedtoolcache/go/1.25.7/x64/src/testing/testing.go:1934 +0xea
        created by testing.(*T).Run in goroutine 1
        	/opt/hostedtoolcache/go/1.25.7/x64/src/testing/testing.go:1997 +0x465
        
    precompile_inclusion_test.go:94: �[31;1m [] execution aborted (timeout = 5s) �[0;0m
ERROR[03-12|09:05:48.705] ExecuteNextMsg failed to get exec engine head message index err="context canceled"
INFO [03-12|09:05:48.705] Writing cached state to disk             block=1   hash=9921ac..9c02bc root=d45d64..4e7811
WARN [03-12|09:05:48.706] Error getting finalizedMessageCount from syncMonitor err="block number not supported: finalized block not found"
INFO [03-12|09:05:48.706] Persisted trie from memory database      nodes=23  flushnodes=0 size=3.61KiB   flushsize=0.00B time="268.339µs" flushtime=0s gcnodes=0 gcsize=0.00B gctime="1.412µs"   livenodes=0    livesize=0.00B
INFO [03-12|09:05:48.706] Writing cached state to disk             block=1   hash=9921ac..9c02bc root=d45d64..4e7811
INFO [03-12|09:05:48.706] Persisted trie from memory database      nodes=0   flushnodes=0 size=0.00B     flushsize=0.00B time="1.062µs"   flushtime=0s gcnodes=0 gcsize=0.00B gctime=0s          livenodes=0    livesize=0.00B
INFO [03-12|09:05:48.706] Writing snapshot state to disk           root=28fb26..40a768
INFO [03-12|09:05:48.706] Persisted trie from memory database      nodes=0   flushnodes=0 size=0.00B     flushsize=0.00B time=571ns       flushtime=0s gcnodes=0 gcsize=0.00B gctime=0s          livenodes=0    livesize=0.00B
INFO [03-12|09:05:48.706] Blockchain stopped
INFO [03-12|09:05:48.706] Submitted transaction                    hash=0x589d4612f3f88196225978d7df6110cd348155a9919326f584fb381ab29c9d9e from=0x26E554a8acF9003b83495c7f45F06edCB803d4e3 nonce=151  recipient=0x26E554a8acF9003b83495c7f45F06edCB803d4e3 value=1
INFO [03-12|09:05:48.707] InboxTracker                             sequencerBatchCount=10  messageCount=13   l1Block=40  l1Timestamp=2026-03-12T09:05:48+0000
INFO [03-12|09:05:48.707] releasing chosen one                     myUrl=/home/runner/work/nitro/nitro/target/tmp/deadbeefbee/1506493533/0.ipc attempt=2
WARN [03-12|09:05:48.707] unable to verify sequencer release status due to Redis error: %v "!BADKEY"="redis: client is closed" "!BADKEY"=<nil>                     LOG_ERROR="Normalized odd number of arguments by adding nil"
ERROR[03-12|09:05:48.707] failed to release chosen one status on shutdown err="redis: client is closed"
--- FAIL: TestVersion40 (8.69s)

TestRedisProduceComplex

Stack Traces | 21.300s run time

=== RUN   TestRedisProduceComplex
=== PAUSE TestRedisProduceComplex
=== CONT  TestRedisProduceComplex
--- FAIL: TestRedisProduceComplex (21.30s)

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