feat(notebooks): update the API

#### notebooks:v2

The following keys were added:
- schemas.GceSetup.properties.minCpuPlatform.description
- schemas.GceSetup.properties.minCpuPlatform.type

discovery/notebooks-v2.json

@@ -876,7 +876,7 @@
       }
     }
   },
-  "revision": "20240613",
+  "revision": "20240731",
   "rootUrl": "https://notebooks.googleapis.com/",
   "schemas": {
     "AcceleratorConfig": {
@@ -1306,6 +1306,10 @@
           "description": "Optional. Custom metadata to apply to this instance.",
           "type": "object"
         },
+        "minCpuPlatform": {
+          "description": "Optional. The minimum CPU platform to use for this instance. The list of valid values can be found in https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform#availablezones",
+          "type": "string"
+        },
         "networkInterfaces": {
           "description": "Optional. The network interfaces for the VM. Supports only one interface.",
           "items": {

src/apis/notebooks/v2.ts

@@ -389,6 +389,10 @@ export namespace notebooks_v2 {
      * Optional. Custom metadata to apply to this instance.
      */
     metadata?: {[key: string]: string} | null;
+    /**
+     * Optional. The minimum CPU platform to use for this instance. The list of valid values can be found in https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform#availablezones
+     */
+    minCpuPlatform?: string | null;
     /**
      * Optional. The network interfaces for the VM. Supports only one interface.
      */