Update .github/workflows/update-extensions.yml

Author: JakeSCahill

.github/workflows/update-extensions.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        branch: [main, 'v/*']
+        branch: [main, 'v/*', shared]
 
     steps:
       - uses: aws-actions/configure-aws-credentials@v4