fix(bug): fix issue with not working informer.Workers RPC call

[rustatian]

Reason for This PR

closes: roadrunner-server/roadrunner#686

Description of Changes

• Do not error in case of 0 workers returned by informer.Workers, just get the next plugin.
• Remove deprecated linters (golint -> revive)
• Add new plugins

License Acceptance

By submitting this pull request, I confirm that my contribution is made under the terms of the MIT license.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any user-facing changes are mentioned in CHANGELOG.md.
• All added/changed functionality is tested.

[codecov]

Codecov Report

Merging #65 (a44863c) into master (11e6fe7) will increase coverage by 0.14%.
The diff coverage is 60.00%.

@@            Coverage Diff             @@
##           master      #65      +/-   ##
==========================================
+ Coverage   50.83%   50.98%   +0.14%     
==========================================
  Files          11       11              
  Lines         301      306       +5     
==========================================
+ Hits          153      156       +3     
- Misses        137      139       +2     
  Partials       11       11              

Impacted Files	Coverage Δ
internal/cli/workers/command.go	23.72% <0.00%> (-0.84%)	⬇️
internal/container/plugins.go	100.00% <100.00%> (ø)

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