Add checkout actions to deploy workflow (#1027)

Author: TimPansino

.github/workflows/deploy-python.yml

@@ -135,6 +135,11 @@ jobs:
       - build-sdist
 
     steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+
       - uses: actions/setup-python@v2
         with:
           python-version: "3.x"