Update validation regex for path spec

[shaun-nx]

Proposed changes

This change updates the regex used to validated the path spec for Ingress and VirtualServer resources

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-commenter]

Codecov Report

Merging #2783 (395479c) into main (8284f4c) will not change coverage.
The diff coverage is n/a.

❗ Current head 395479c differs from pull request most recent head cbf0fbe. Consider uploading reports for the commit cbf0fbe to get more accurate results

@@           Coverage Diff           @@
##             main    #2783   +/-   ##
=======================================
  Coverage   54.04%   54.04%           
=======================================
  Files          53       53           
  Lines       15009    15009           
=======================================
  Hits         8112     8112           
  Misses       6629     6629           
  Partials      268      268           

Impacted Files	Coverage Δ
internal/k8s/validation.go	97.79% <ø> (ø)
pkg/apis/configuration/validation/virtualserver.go	94.74% <ø> (ø)

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[jjngx]

👍🏻