Update python-publish.yml

.github/workflows/python-publish.yml

@@ -16,7 +16,13 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/[email protected]
+    - uses: actions/checkout@main
+    - name: Set up Python
+      uses: actions/setup-python@v3
     steps:
     - name: Checkout repository
       uses: actions/checkout@v3