Update VirtualServer template to generate an internal jwt auth location per policy applied

[shaun-nx]

Proposed changes

This change:

• Ensures only one proxy_cache_path is generated per VirtualServer
• Ensures each internal jwt auth location references the proxy_cache_path of its VirtualServer
• Ensures VirutalServer paths (e.g. /tea/leaf or /coffee/beans) will proxy_pass to a specific internal jwt auth location based on the policy applied to that route (i.e. locations will no longer create nested internal jwt auth locations)

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 #3798 (f9d1a9f) into main (28eee73) will increase coverage by 0.00%.
The diff coverage is 55.17%.

@@           Coverage Diff           @@
##             main    #3798   +/-   ##
=======================================
  Coverage   52.39%   52.39%           
=======================================
  Files          59       59           
  Lines       16902    16931   +29     
=======================================
+ Hits         8855     8871   +16     
- Misses       7750     7761   +11     
- Partials      297      299    +2     

Impacted Files	Coverage Δ
internal/configs/version2/http.go	0.00% <ø> (ø)
internal/configs/virtualserver.go	94.54% <55.17%> (-0.63%)	⬇️

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