gardener Promote feature gate `RemoveAPIServerProxyLegacyPort` to GA

How to categorize this PR?

/area networking /kind enhancement

What this PR does / why we need it: This PR promotes the feature gate RemoveAPIServerProxyLegacyPort to GA status. Now that we had the feature gate in beta for 3 versions, we are confident this can go GA.

Which issue(s) this PR fixes: Part of https://github.com/gardener/gardener/issues/11214

Special notes for your reviewer:

Release note:

The `RemoveAPIServerProxyLegacyPort` feature gate has been promoted to GA and is now unconditionally enabled.

Jun 17 '25 12:06 Wieneo

/assign

Jun 18 '25 06:06 ialidzhikov

/cc @ScheererJ as GEP-30 reviewer

Jun 18 '25 07:06 ialidzhikov

LGTM label has been added.

Git tree hash: 8ea0dff07ef0928a2713790ab83f97342ecb9b61

Jun 18 '25 08:06 gardener-prow[bot]

/assign

Jun 23 '25 15:06 ScheererJ

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ScheererJ

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~~OWNERS~~ [ScheererJ]

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Jun 23 '25 15:06 gardener-prow[bot]

/retest

Jun 23 '25 16:06 oliver-goetz

/retest

Jun 24 '25 05:06 Wieneo

/retest

Jun 24 '25 07:06 Wieneo

/retest

Jun 24 '25 07:06 Wieneo