Revert force_orphan and update setup-python action

Author: Cito

.github/workflows/release-docs.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python 3.7
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: 3.7
     - name: Install dependencies
@@ -32,4 +32,4 @@ jobs:
         publish_branch: gh-pages
         publish_dir: docs/_build/html
         enable_jekyll: false
-        force_orphan: false
+        force_orphan: true

.github/workflows/test-package.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies