Update deploy-docusaurus-docs.yml

Skip Docs Build When Forked Repo

Author: Rashmi-278

.github/workflows/deploy-docusaurus-docs.yml

@@ -20,6 +20,7 @@ on:
   workflow_dispatch:
 
 jobs:
+  if: github.repository_owner != 'opensource-observer'
   build-deploy:
     # NOTE: This name appears in GitHub's Checks API.
     name: build-deploy