Add websocket protocol option to monitor directive

[pasmant]

Add websocket protocol option to monitor directive

example:

app_protect_dos_monitor uri=webapp.example.com protocol=websocket timeout=5;

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

[codecov-commenter]

Codecov Report

Merging #3442 (841626b) into main (d51a554) will decrease coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 841626b differs from pull request most recent head 5fee706. Consider uploading reports for the commit 5fee706 to get more accurate results

@@            Coverage Diff             @@
##             main    #3442      +/-   ##
==========================================
- Coverage   51.95%   51.93%   -0.03%     
==========================================
  Files          60       60              
  Lines       16797    16797              
==========================================
- Hits         8727     8723       -4     
- Misses       7775     7777       +2     
- Partials      295      297       +2     

Impacted Files	Coverage Δ
pkg/apis/dos/validation/dos.go	94.54% <ø> (ø)
internal/k8s/configuration.go	95.39% <0.00%> (-0.37%)	⬇️

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