Gunzip for VS

[jjngx]

Proposed changes

This PR introduces gunzip functionality setup on the server (VS).

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

Merging #3790 (1485ea9) into main (dd84a78) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #3790      +/-   ##
==========================================
+ Coverage   52.38%   52.40%   +0.01%     
==========================================
  Files          59       59              
  Lines       16891    16898       +7     
==========================================
+ Hits         8848     8855       +7     
  Misses       7748     7748              
  Partials      295      295              

Impacted Files	Coverage Δ
internal/configs/version2/http.go	0.00% <ø> (ø)
pkg/apis/configuration/validation/virtualserver.go	94.42% <100.00%> (+0.03%)	⬆️

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[haywoodsh]

Looks good @jjngx! Left a comment about documentation.
Also, I noticed this on the nginx docs:

This module is not built by default, it should be enabled with the --with-http_gunzip_module configuration parameter.

Have you encountered any issues when running OSS and Plus version?