chore: migrate google-cloud-monitoring to librarian

librarian.yaml

@@ -1058,7 +1058,6 @@ libraries:
     apis:
       - path: google/monitoring/v3
     copyright_year: "2026"
-    skip_generate: true
     nodejs:
       default_version: v3
       main_service: monitoring

packages/google-cloud-monitoring/.repo-metadata.json

@@ -1,16 +1,16 @@
 {
-  "client_documentation": "https://cloud.google.com/nodejs/docs/reference/monitoring/latest",
-  "product_documentation": "https://cloud.google.com/monitoring/docs",
-  "name": "monitoring",
-  "requires_billing": true,
-  "release_level": "stable",
-  "language": "nodejs",
-  "api_id": "monitoring.googleapis.com",
-  "distribution_name": "@google-cloud/monitoring",
-  "repo": "googleapis/google-cloud-node",
-  "issue_tracker": "https://issuetracker.google.com/savedsearches/559785",
-  "name_pretty": "Stackdriver Monitoring",
-  "default_version": "v3",
-  "api_shortname": "monitoring",
-  "library_type": "GAPIC_AUTO"
-}
+    "api_description": "Manages your Cloud Monitoring data and configurations.",
+    "api_id": "monitoring.googleapis.com",
+    "api_shortname": "monitoring",
+    "client_documentation": "https://cloud.google.com/nodejs/docs/reference/monitoring/latest",
+    "default_version": "v3",
+    "distribution_name": "@google-cloud/monitoring",
+    "issue_tracker": "https://issuetracker.google.com/savedsearches/559785",
+    "language": "nodejs",
+    "library_type": "GAPIC_AUTO",
+    "name": "monitoring",
+    "name_pretty": "Cloud Monitoring",
+    "product_documentation": "https://cloud.google.com/monitoring/docs",
+    "release_level": "stable",
+    "repo": "googleapis/google-cloud-node"
+}