Increase periodic docs build interval from 30 minutes to 3 hours (#3318)

Made-with: Cursor

Author: reakaleek

catalog-info.yaml

@@ -28,7 +28,7 @@ spec:
         periodic_docs_build:
           branch: "master"
           message: "Build the docs every 30 minutes"
-          cronline: "*/30 * * * *"
+          cronline: "0 */3 * * *"
       teams:
         docs-build-guild:
           access_level: MANAGE_BUILD_AND_READ