Adds a delay after push.

.github/workflows/main.yml

@@ -207,8 +207,15 @@ jobs:
           fi
 
       - name: Push changes
-        uses: ad-m/github-push-action@v0.6.0
+        uses: ad-m/github-push-action@master
         if: github.ref_name == 'main'
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           branch: ${{ github.ref }}
+
+      # GitHub shows an inconsistent delay with pulling right after pushing. Since we push
+      # for multiple distributions, we have to make sure the next checkout doesn't conflict
+      # with the current.
+      - name: Delay 30 seconds for pushed changes to be visible
+        run: sleep 30s
+        shell: bash