[Dev] Fix github action on updating material icons (#982)

.github/workflows/update-icons.yml

@@ -29,22 +29,34 @@ jobs:
         run: |
           hatch run update-icons
       - name: Check for changes
+        id: check_changes
         run: |
           git config user.email "[email protected]"
           git config user.name "Vizro Team"
-          git diff --exit-code || echo "has_changes=true" >> $GITHUB_ENV
+          git diff --exit-code || echo "has_changes=true" >> $GITHUB_OUTPUT
+    outputs:
+      has_changes: ${{ steps.check_changes.outputs.has_changes }}
 
   update-icons:
     runs-on: ubuntu-latest
     needs: [check-update]
     if: |
-      env.has_changes == 'true'
+      needs.check-update.outputs.has_changes == 'true'
     steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+      - name: Install Hatch
+        run: pip install hatch
       - name: Delete old branch if exists
         run: |
           git push origin --delete bot/update-material-icons || true
       - name: Create and push changes
         run: |
+          git config user.email "[email protected]"
+          git config user.name "Vizro Team"
           git checkout -b bot/update-material-icons
           hatch run changelog:add
           git add -A