test(conformance): restore skipped gatewayapi cases when it's stable now

Signed-off-by: Jay Chen <[email protected]>

test/e2e_env/gatewayapi/conformance_test.go

@@ -136,9 +136,6 @@ func TestConformance(t *testing.T) {
 		),
 		Implementation:      implementation,
 		ConformanceProfiles: sets.New(suite.GatewayHTTPConformanceProfileName, suite.MeshHTTPConformanceProfileName),
-		// We are seeing flaky runs which are related to headless service cases, so ignoring them temporarily
-		// See https://github.com/kumahq/kuma/pull/11463
-		SkipTests: []string{tests.HTTPRouteServiceTypes.ShortName},
 	}
 
 	conformanceSuite, err := suite.NewConformanceTestSuite(options)