Enable GatewayStaticAddresses conformance test

[arkodg]

Description:
test details in https://github.com/kubernetes-sigs/gateway-api/blob/main/conformance/tests/gateway-static-addresses.yaml

Once fixed, please enable in https://github.com/envoyproxy/gateway/blob/main/test/conformance/conformance_test.go
&
https://github.com/envoyproxy/gateway/blob/main/test/conformance/experimental_conformance_test.go

Skipped in #1987

[zirain]

move this into Backlog, will keep watching

[zirain]

xhref: #2014

[github-actions]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.