feat: add force_remote_build config param to disable local job handling

[iTrooz]

This PR adds a force_remote_build config parameter to the sccache client. This can be useful in 2 cases:

• when debugging if your builds are actually sent to the build servers instead of being processed locally
• when you don't want to ensure no compute is used on your local client

[codecov-commenter]

Codecov Report

❌ Patch coverage is 91.72414% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.38%. Comparing base (8825b4a) to head (481f65d).

Files with missing lines	Patch %	Lines
src/compiler/compiler.rs	93.44%	8 Missing ⚠️
src/server.rs	50.00%	3 Missing ⚠️
tests/oauth.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2713      +/-   ##
==========================================
- Coverage   74.41%   74.38%   -0.03%     
==========================================
  Files          70       70              
  Lines       39211    39499     +288     
==========================================
+ Hits        29177    29380     +203     
- Misses      10034    10119      +85     

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