fix: Deprecate "EXPERIMENTAL" option for Gateway API (this value has never been supported)

Google APIs · copybara-github · commit fa77a9fd140f · 2024-07-02T11:45:49.000-07:00
PiperOrigin-RevId: 648792772
diff --git a/google/container/v1beta1/cluster_service.proto b/google/container/v1beta1/cluster_service.proto
@@ -5164,8 +5164,9 @@ message GatewayAPIConfig {
     // Gateway API support is disabled
     CHANNEL_DISABLED = 1;
 
+    // Deprecated: use CHANNEL_STANDARD instead.
     // Gateway API support is enabled, experimental CRDs are installed
-    CHANNEL_EXPERIMENTAL = 3;
+    CHANNEL_EXPERIMENTAL = 3 [deprecated = true];
 
     // Gateway API support is enabled, standard CRDs are installed
     CHANNEL_STANDARD = 4;
