ci: bump setup-python to v5

Author: CJ Steiner

.github/workflows/deploy.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v5
       with:
         python-version: 3.x
     - run: pip install virtualenv