apiclient: return nil response if we couldnt connect to LAPI

[blotus]

Fixes #4562

[github-actions]

@blotus: There are no 'kind' label on this PR. You need a 'kind' label to generate the release automatically.

• /kind feature
• /kind enhancement
• /kind refactoring
• /kind fix
• /kind chore
• /kind dependencies

Details

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[github-actions]

@blotus: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area appsec
• /area security
• /area configuration

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[blotus]

/kind fix
/area agent

[codecov]

Codecov Report

❌ Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.85%. Comparing base (7363888) to head (9d3f460).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/apiclient/client_http.go	40.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4573      +/-   ##
==========================================
- Coverage   63.86%   63.85%   -0.02%     
==========================================
  Files         509      509              
  Lines       38960    38962       +2     
==========================================
- Hits        24883    24879       -4     
- Misses      11707    11712       +5     
- Partials     2370     2371       +1     

Flag	Coverage Δ
bats	41.94% <40.00%> (-0.02%)	⬇️
unit-linux	40.00% <40.00%> (+0.07%)	⬆️
unit-windows	28.62% <40.00%> (+0.02%)	⬆️

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[sabban]

lgtm