docs(workflow): Update github workflow

Author: ImDevinC

.github/workflows/manifest-changed.yaml

@@ -9,10 +9,13 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Validate manifest was changed
         run: |
-          git --no-pager diff main --name-only --exit-code manifest.json
+          set +e
+          git --no-pager diff origin/main --name-only --exit-code manifest.json
           if [ $? -eq 0 ]; then
             echo "Manifest file not updated"
             exit 1