Add locations field to intercept endpoint group association. (#13370)

Author: duvni

mmv1/products/networksecurity/InterceptEndpointGroupAssociation.yaml

@@ -127,6 +127,8 @@ properties:
       The list of locations where the association is present. This information
       is retrieved from the linked endpoint group, and not configured as part
       of the association itself.
+    deprecation_message: |-
+      `locationsDetails` is deprecated and will be removed in a future major release. Use `locations` instead.
     min_version: 'beta'
     output: true
     item_type:
@@ -171,3 +173,30 @@ properties:
       See https://google.aip.dev/128.
     min_version: 'beta'
     output: true
+  - name: locations
+    type: Array
+    is_set: true
+    description: |-
+      The list of locations where the association is configured. This information
+      is retrieved from the linked endpoint group.
+    min_version: 'beta'
+    output: true
+    item_type:
+      type: NestedObject
+      properties:
+        - name: location
+          type: String
+          description: |-
+            The cloud location, e.g. `us-central1-a` or `asia-south1-b`.
+          min_version: 'beta'
+          output: true
+        - name: state
+          type: String
+          description: |-
+            The current state of the association in this location.
+            Possible values:
+            STATE_UNSPECIFIED
+            ACTIVE
+            OUT_OF_SYNC
+          min_version: 'beta'
+          output: true