feat: set longer polling timeouts for filestore DeleteInstance and DeleteSnapshot

PiperOrigin-RevId: 456849206

google/cloud/filestore/v1beta1/file_gapic.yaml

@@ -5,10 +5,25 @@ interfaces:
 # The fully qualified name of the API interface.
 - name: google.cloud.filestore.v1beta1.CloudFilestoreManager
   methods:
+  # Both CreateInstance and DeleteSnapshot can take a long time to complete.
+  # The default client-side timeouts cause the client to give up on the request early,
+  # so the following configuration increases it:
+  # See go/client-self-service#configure-long-running-operation-polling-timeouts-optional
   - name: CreateInstance
-    # See go/client-self-service#configure-long-running-operation-polling-timeouts-optional
     long_running:
       initial_poll_delay_millis: 60000  # 1 minutes
       poll_delay_multiplier: 1.5
       max_poll_delay_millis: 360000  # 6 minutes
       total_poll_timeout_millis: 7200000  # 120 minutes
+  - name: DeleteSnapshot
+    long_running:
+      initial_poll_delay_millis: 60000  # 1 minutes
+      poll_delay_multiplier: 1.5
+      max_poll_delay_millis: 360000  # 6 minutes
+      total_poll_timeout_millis: 7200000  # 120 minutes
+  - name: DeleteInstance
+    long_running:
+      initial_poll_delay_millis: 60000  # 1 minutes
+      poll_delay_multiplier: 1.5
+      max_poll_delay_millis: 360000  # 6 minutes
+      total_poll_timeout_millis: 900000  # 15 minutes