chore: migrate google-ads-admanager to librarian (#8555)

Author: jskeet

librarian.yaml

@@ -36,7 +36,6 @@ libraries:
     apis:
       - path: google/ads/admanager/v1
     copyright_year: "2026"
-    skip_generate: true
     nodejs:
       default_version: v1
       client_documentation_override: https://cloud.google.com/nodejs/docs/reference/admanager/latest

packages/google-ads-admanager/.OwlBot.yaml

@@ -1,16 +1,16 @@
 {
+    "api_description": "Manage your Ad Manager inventory, run reports and more.",
     "api_id": "admanager.googleapis.com",
     "api_shortname": "admanager",
     "client_documentation": "https://cloud.google.com/nodejs/docs/reference/admanager/latest",
     "default_version": "v1",
     "distribution_name": "@google-ads/admanager",
-    "issue_tracker": "https://github.com/googleapis/google-cloud-node/issues",
+    "issue_tracker": "https://issuetracker.google.com/issues/new?component=1265187&template=1787490",
     "language": "nodejs",
     "library_type": "GAPIC_AUTO",
     "name": "admanager",
-    "name_pretty": "Google Ad Manager API",
+    "name_pretty": "Google Ad Manager",
     "product_documentation": "https://developers.google.com/ad-manager/api/beta",
     "release_level": "preview",
-    "repo": "googleapis/google-cloud-node",
-    "requires_billing": true
+    "repo": "googleapis/google-cloud-node"
 }