ci: fixes typo in the flake update workflow (#255)

Author: andrinoff

.github/workflows/update-flake.yml

@@ -17,19 +17,13 @@ jobs:
       - name: Update flake.lock
         run: nix flake update
 
-      - name: Commit changes
-        run: |
-
-      - name: Configure Git
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-
-      - name: Push changes
+      - name: Commit and push changes
         env:
           GH_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
         run: |
-          git diff --quiet flake.lock && exit 0`
+          git diff --quiet flake.lock && exit 0
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
           git add .
           git commit -m "chore: update flake.lock (#228)"
           git remote set-url origin https://x-access-token:${GH_TOKEN}@github.com/${{ github.repository }}.git