🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

google-cloud-certificate_manager-v1/.repo-metadata.json

@@ -8,7 +8,7 @@
     "name": "certificatemanager",
     "name_pretty": "Certificate Manager V1 API",
     "product_documentation": "https://cloud.google.com/certificate-manager",
-    "release_level": "preview",
+    "release_level": "stable",
     "repo": "googleapis/google-cloud-ruby",
     "requires_billing": true,
     "ruby-cloud-description": "Certificate Manager lets you acquire and manage Transport Layer Security (TLS) (SSL) certificates for use with classic external HTTP(S) load balancers in Google Cloud. Note that google-cloud-certificate_manager-v1 is a version-specific client library. For most uses, we recommend installing the main client library google-cloud-certificate_manager instead. See the readme for more details.",

google-cloud-certificate_manager-v1/snippets/snippet_metadata_google.cloud.certificatemanager.v1.json

@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-certificate_manager-v1",
-    "version": "0.12.0",
+    "version": "1.0.0",
     "language": "RUBY",
     "apis": [
       {