webhook: forbid use internal protocols

[ls-2018]

Ⅰ. Describe what this PR does

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Attention: Patch coverage is 65.00000% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 67.54%. Comparing base (b634779) to head (fcf43d7).
Report is 6 commits behind head on main.

Files	Patch %	Lines
pkg/webhook/pod/validating/verify_annotations.go	69.44%	10 Missing and 1 partial ⚠️
pkg/webhook/pod/validating/validating_handler.go	25.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1911   +/-   ##
=======================================
  Coverage   67.53%   67.54%           
=======================================
  Files         413      414    +1     
  Lines       46229    46284   +55     
=======================================
+ Hits        31223    31262   +39     
- Misses      12742    12750    +8     
- Partials     2264     2272    +8     

Flag	Coverage Δ
unittests	67.54% <65.00%> (+<0.01%)	⬆️

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[ls-2018]

professional.👍🏻 @eahydra @saintube

[eahydra]

/lgtm
cc @saintube Do you have any further comments?

[saintube]

/lgtm

[eahydra]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eahydra

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