fix: updated heroku version

Author: ArshiaBP

manifest.yaml

@@ -230,7 +230,7 @@ plugins:
     package_type: "plugin"
     default: false
     artifact_details:
-      package_url: "https://github.com/opengovern/og-describer-heroku/releases/download/v0.5.0/heroku-plugin.zip"
+      package_url: "https://github.com/opengovern/og-describer-heroku/releases/download/v0.5.1/heroku-plugin.zip"
   - id: 16
     integration_type: "oci_repository"
     name: "OCI Repository"