Retry request if no response is sent by management plane

[aphralG]

Proposed changes

Added response_timeout to agent config under client_grpc -> Default is 10 seconds
Use response_timeout when making request to management plane, if no response is received in the set time resend the response.
Modified the mock management plane so the first create connection request is ignored to test the retry logic in the integration tests.

Checklist

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• I have read the CONTRIBUTING document
• I have run make install-tools and have attached any dependency changes to this pull request
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

[codecov]

Codecov Report

❌ Patch coverage is 86.36364% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.32%. Comparing base (b1947ec) to head (41f9856).

Files with missing lines	Patch %	Lines
internal/command/command_service.go	83.33%	2 Missing ⚠️
internal/file/file_service_operator.go	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1381      +/-   ##
==========================================
+ Coverage   86.31%   86.32%   +0.01%     
==========================================
  Files         102      102              
  Lines       12603    12617      +14     
==========================================
+ Hits        10878    10892      +14     
  Misses       1249     1249              
  Partials      476      476              

Files with missing lines	Coverage Δ
internal/config/config.go	87.37% <100.00%> (+0.07%)	⬆️
internal/config/defaults.go	100.00% <ø> (ø)
internal/config/flags.go	100.00% <ø> (ø)
internal/config/types.go	87.65% <ø> (ø)
internal/file/file_service_operator.go	76.29% <75.00%> (+0.15%)	⬆️
internal/command/command_service.go	80.74% <83.33%> (+0.36%)	⬆️

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[dhurley]

Can you add a comment here explaining why we are doing this?