feat: implement remote source dynamic modules

[jukie]

What this PR does / why we need it:
Implementation for #8359

Which issue(s) this PR fixes:

xRef #5668

Release Notes: No

[netlify]

✅ Deploy Preview for cerulean-figolla-1f9435 ready!

Name	Link
🔨 Latest commit	53230ae
🔍 Latest deploy log	https://app.netlify.com/projects/cerulean-figolla-1f9435/deploys/69c40793ab9cc30008b00d05
😎 Deploy Preview	https://deploy-preview-8579--cerulean-figolla-1f9435.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[codecov]

Codecov Report

❌ Patch coverage is 69.72477% with 33 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.33%. Comparing base (4aa6c37) to head (53230ae).

Files with missing lines	Patch %	Lines
internal/gatewayapi/envoyextensionpolicy.go	45.00%	15 Missing and 7 partials ⚠️
internal/xds/translator/dynamicmodule.go	81.66%	6 Missing and 5 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8579   +/-   ##
=======================================
  Coverage   74.33%   74.33%           
=======================================
  Files         243      243           
  Lines       38143    38226   +83     
=======================================
+ Hits        28354    28417   +63     
- Misses       7801     7813   +12     
- Partials     1988     1996    +8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[jukie]

/retest