chore: Checkout code before publishing

Author: erezrokah

.github/workflows/publish.yml

@@ -12,6 +12,8 @@ jobs:
        # IMPORTANT: this permission is mandatory for trusted publishing
        id-token: write
      steps:
+       - name: Checkout
+         uses: actions/checkout@v3
        - name: Set up Python
          uses: actions/setup-python@v4
          with: