fix: [container] Deprecate "EXPERIMENTAL" option for Gateway API (thi…

…s value has never been supported) (googleapis#5535)

* feat: add DCGM enum in monitoring config

PiperOrigin-RevId: 650740847

Source-Link: googleapis/googleapis@8176cd8

Source-Link: https://github.com/googleapis/googleapis-gen/commit/f9af3df992928f588592c7182899c86d8802c74a
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* fix: Deprecate "EXPERIMENTAL" option for Gateway API (this value has never been supported)

feat: add DCGM enum in monitoring config
PiperOrigin-RevId: 651124125

Source-Link: googleapis/googleapis@99ca978

Source-Link: https://github.com/googleapis/googleapis-gen/commit/6622e61e1930812c1cc0653c35b0da0bfc67efc0
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packages/google-container/protos/google/container/v1/cluster_service.proto

@@ -4540,8 +4540,9 @@ 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;
@@ -5386,6 +5387,9 @@ message MonitoringComponentConfig {
 
     // KUBELET
     KUBELET = 14;
+
+    // NVIDIA Data Center GPU Manager (DCGM)
+    DCGM = 15;
   }
 
   // Select components to collect metrics. An empty set would disable all

packages/google-container/protos/google/container/v1beta1/cluster_service.proto

@@ -6096,6 +6096,9 @@ message MonitoringComponentConfig {
 
     // KUBELET
     KUBELET = 14;
+
+    // NVIDIA Data Center GPU Manager (DCGM)
+    DCGM = 15;
   }
 
   // Select components to collect metrics. An empty set would disable all