Merge pull request #523 from TRaSH-/dependabot/github_actions/actions/setup-python-3

Bump actions/setup-python from 2 to 3

.github/workflows/deploy.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: '0'
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
         with:
           python-version: 3.x
       - run: pip install -r docs/requirements.txt