chore: migrate google-cloud-channel to librarian (#8550)

Author: quirogas

librarian.yaml

@@ -480,7 +480,6 @@ libraries:
     apis:
       - path: google/cloud/channel/v1
     copyright_year: "2026"
-    skip_generate: true
     nodejs:
       default_version: v1
   - name: google-cloud-chronicle

packages/google-cloud-channel/.OwlBot.yaml

@@ -1,16 +1,15 @@
 {
-  "client_documentation": "https://cloud.google.com/nodejs/docs/reference/channel/latest",
-  "api_id": "cloudchannel.googleapis.com",
-  "distribution_name": "@google-cloud/channel",
-  "release_level": "stable",
-  "default_version": "v1",
-  "language": "nodejs",
-  "name_pretty": "Cloud Channel API",
-  "repo": "googleapis/google-cloud-node",
-  "product_documentation": "https://cloud.google.com/channel/",
-  "requires_billing": true,
-  "name": "cloudchannel",
-  "issue_tracker": "https://github.com/googleapis/google-cloud-node/issues",
-  "api_shortname": "cloudchannel",
-  "library_type": "GAPIC_AUTO"
-}
+    "api_description": "The Cloud Channel API enables Google Cloud partners to have a single\nunified resale platform and APIs across all of Google Cloud including GCP,\nWorkspace, Maps and Chrome.",
+    "api_id": "cloudchannel.googleapis.com",
+    "api_shortname": "cloudchannel",
+    "client_documentation": "https://cloud.google.com/nodejs/docs/reference/channel/latest",
+    "default_version": "v1",
+    "distribution_name": "@google-cloud/channel",
+    "language": "nodejs",
+    "library_type": "GAPIC_AUTO",
+    "name": "cloudchannel",
+    "name_pretty": "Cloud Channel",
+    "product_documentation": "https://cloud.google.com/channel/docs",
+    "release_level": "stable",
+    "repo": "googleapis/google-cloud-node"
+}