feat(config): pass RR version to the config plugin

[rustatian]

Reason for This PR

related: https://github.com/spiral/roadrunner-plugins/issues/32

Description of Changes

• Pass the RR version in the serve mode.

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]

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

[codecov[bot]]

Codecov Report

Merging #144 (5705376) into master (93b36d8) will decrease coverage by 0.07%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #144      +/-   ##
==========================================
- Coverage   43.63%   43.56%   -0.08%     
==========================================
  Files          12       12              
  Lines         566      567       +1     
==========================================
  Hits          247      247              
- Misses        308      309       +1     
  Partials       11       11              

Impacted Files	Coverage Δ
internal/cli/serve/command.go	5.97% <0.00%> (-0.10%)	:arrow_down:

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