fix the way acquisition is stopped

[sabban]

fix the way acquisition is stopped: drain the inputLineChan before terminating the acquisition routine to make sure that the acquisition routine doesn't get stuck filling a chan that isn't read anywhere.

[github-actions]

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

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

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.

[github-actions]

@sabban: 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 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.

[codecov-commenter]

Codecov Report

Merging #2069 (ebf7343) into master (01ea78c) will increase coverage by 0.02%.
The diff coverage is 76.92%.

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##           master    #2069      +/-   ##
==========================================
+ Coverage   53.37%   53.40%   +0.02%     
==========================================
  Files         175      175              
  Lines       24012    24022      +10     
==========================================
+ Hits        12816    12828      +12     
+ Misses       9786     9784       -2     
  Partials     1410     1410              

Flag	Coverage Δ
func-crowdsec	46.24% <76.92%> (+0.22%)	⬆️
func-cscli	48.10% <ø> (ø)
unit-linux	56.08% <ø> (+0.03%)	⬆️
unit-windows	52.18% <ø> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/crowdsec/main.go	64.07% <ø> (ø)
cmd/crowdsec/serve.go	24.26% <72.72%> (+1.74%)	⬆️
cmd/crowdsec/crowdsec.go	43.97% <100.00%> (ø)
pkg/acquisition/modules/cloudwatch/cloudwatch.go	78.82% <0.00%> (+0.98%)	⬆️

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[sabban]

I ensured that there's no lock added of any kind

[sabban]

I may come with a better way to do this.