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

gcloud auth application-default login/google-cloud-sdk/lib/surface/dataplex/content/delete.yaml

@@ -0,0 +1,20 @@
+- release_tracks: [ALPHA, GA]
+  help_text:
+    brief: |
+      Delete a Dataplex Content Resource.
+    description: |
+      Delete a Dataplex Content resource based on project, location, lake, and content.
+
+    examples: |
+      To delete a content `test-content` in lake `test-lake` under location `us-central1` inside project `test-project`, run :
+
+       $ {command} --project=test-project --location=us-central1 --lake=test-lake test-content
+  request:
+    ALPHA:
+      api_version: v1
+    collection: dataplex.projects.locations.lakes.contentitems
+  arguments:
+    resource:
+      help_text: |
+        Arguments and flags that define the Dataplex Content you want to delete.
+      spec: !REF googlecloudsdk.command_lib.dataplex.resources:content