chore: update arbitrumSepolia addresses after deployment

RewardsManager and SubgraphService implementation addresses updated
with new deployment metadata.

Author: RembrandtK

packages/horizon/addresses.json

@@ -92,17 +92,17 @@
     "RewardsManager": {
       "address": "0x1F49caE7669086c8ba53CC35d1E9f80176d67E79",
       "proxy": "graph",
-      "implementation": "0xd681431502e7f9780f14576c17f4459074fc2360",
+      "implementation": "0x7b7b644d242ad0293c5d6089dfc53b382314ba9d",
       "proxyDeployment": {
         "verified": "https://sepolia.arbiscan.io/address/0x1F49caE7669086c8ba53CC35d1E9f80176d67E79#code"
       },
       "implementationDeployment": {
-        "txHash": "0x09b9cea7f67a55bf81fc92b08d4bb6c7a34f0471d4d1987ef3d914d76ea3f351",
+        "txHash": "0xc6a1a714b8b22834e8e53ebb749d26f5d8ac8f9acd9c3d110ba304eb39c9e6e6",
         "argsData": "0x",
-        "bytecodeHash": "0xee210d0ea0a5e1a46622eb4da78d621523e3efcae872d8a844a69b9677c704ef",
-        "blockNumber": 240022327,
-        "timestamp": "2026-02-05T19:03:01.000Z",
-        "verified": "https://sepolia.arbiscan.io/address/0xd681431502e7f9780f14576c17f4459074fc2360#code"
+        "bytecodeHash": "0x87ea87471df0e9b9c1febcfc90e1555a746b8243506fb73427d04df3e3ed4518",
+        "blockNumber": 246428542,
+        "timestamp": "2026-03-02T20:24:30.000Z",
+        "verified": "https://sepolia.arbiscan.io/address/0x7b7b644d242ad0293c5d6089dfc53b382314ba9d#code"
       }
     },
     "HorizonStaking": {

packages/subgraph-service/addresses.json

@@ -37,14 +37,13 @@
       "address": "0xc24A3dAC5d06d771f657A48B20cE1a671B78f26b",
       "proxy": "transparent",
       "proxyAdmin": "0x15737D9f8635cAcd43e110327c930bd5EC1fe098",
-      "implementation": "0x8a6361e7355d6936ab17aaacde797d01c0e6c4c4",
+      "implementation": "0x1e91024a6afc5a6c5cdd3caff900120ac90ae420",
       "implementationDeployment": {
-        "txHash": "0x9f3fc372d88a97832eb47bc1f98176532b9a54fa0c110dab8399f9e55ab0aa9d",
+        "txHash": "0xef8fd7c012cc9d304e118bca035562fbef92aff23252b5b16704dac8b558aa63",
         "argsData": "0x0000000000000000000000009db3ee191681f092607035d9bda6e59fbeaca69500000000000000000000000096e1b86b2739e8a3d59f40f2532cadf9ce8da088000000000000000000000000382863e7b662027117449bd2c49285582bbbd21b000000000000000000000000de761f075200e75485f4358978fb4d1dc8644fd5",
-        "bytecodeHash": "0x9c25d2f93e6a2a34cc19d00224872e288a8392d5d99b2df680b7e978d148d450",
-        "blockNumber": 240040490,
-        "timestamp": "2026-02-05T20:26:15.000Z",
-        "verified": "https://sepolia.arbiscan.io/address/0x8a6361e7355d6936ab17aaacde797d01c0e6c4c4#code"
+        "bytecodeHash": "0x6a936cfc4845d1fefa610aff4f060592a4a0ceb41232c368a089a5aa21efb957",
+        "blockNumber": 246430101,
+        "timestamp": "2026-03-02T20:38:09.000Z"
       },
       "proxyDeployment": {
         "verified": "https://sepolia.arbiscan.io/address/0xc24A3dAC5d06d771f657A48B20cE1a671B78f26b#code"