feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/lib/surface/workflows/executions/cancel.yaml

@@ -0,0 +1,33 @@
+- release_tracks: [ALPHA, BETA, GA]
+  help_text:
+    brief: |
+      Cancel a workflow execution
+    description: |
+      Cancel a workflow execution.
+    examples: |
+      To cancel an execution with ID 'my-workflow-execution-ID' from a
+      workflow named 'my-workflow', run:
+
+          $ {command} my-workflow-execution-ID --workflow=my-workflow
+
+  arguments:
+    resource:
+      spec: !REF googlecloudsdk.command_lib.workflows.resources:execution
+      help_text: |
+        The name of the workflow execution to cancel.
+
+  input:
+    confirmation_prompt: |
+      You are about to cancel execution [{__name__}] of workflow [{workflowsId}].
+
+  request:
+    ALPHA:
+      api_version: v1alpha1
+    BETA:
+      api_version: v1beta
+    GA:
+      api_version: v1
+    method: cancel
+    collection: workflowexecutions.projects.locations.workflows.executions
+    modify_request_hooks:
+    - googlecloudsdk.command_lib.workflows.hooks:print_default_location_warning