feat: implement rewrite path prefix filter for HTTPRoute in traditional router mode

[czeslavo]

What this PR does / why we need it:

Implements HTTPRoute's URLRewrite filter with path type ReplacePrefixMatch for the traditional router. Enables SupportHTTPRoutePathRewrite feature in Gateway API conformance tests.

Support for expressions router will be implemented in a separate PR.

Which issue this PR fixes:

Part of #3686.

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

Attention: Patch coverage is 84.44444% with 21 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (main@feb2ce1). Click here to learn what that means.
Report is 3 commits behind head on main.

❗ Current head 7c6e3a0 differs from pull request most recent head 4566bd1. Consider uploading reports for the commit 4566bd1 to get more accurate results

Files	Patch %	Lines
...al/dataplane/translator/subtranslator/httproute.go	85.7%	11 Missing and 6 partials ⚠️
...ataplane/translator/subtranslator/httproute_atc.go	50.0%	0 Missing and 2 partials ⚠️
...ternal/dataplane/translator/translate_httproute.go	83.3%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##             main   #5895   +/-   ##
======================================
  Coverage        ?   74.2%           
======================================
  Files           ?     179           
  Lines           ?   18377           
  Branches        ?       0           
======================================
  Hits            ?   13654           
  Misses          ?    3725           
  Partials        ?     998           

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