Naming and quoting

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest]
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11-a05']
+        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11.0-alpha.5']
 
     env:
       PY_COLORS: 1
@@ -45,7 +45,7 @@ jobs:
           sudo apt install ffmpeg  # For replaygain
 
       - name: Test older Python versions with tox
-        if: matrix.python-version != '3.10' && matrix.python-version != '3.11-a05'
+        if: matrix.python-version != '3.10' && matrix.python-version != '3.11.0-alpha.5'
         run: |
           tox -e py-test
 
@@ -55,7 +55,7 @@ jobs:
           tox -vv -e py-cov
 
       - name: Test nightly Python version with tox
-        if: matrix.python-version == '3.11-a05'
+        if: matrix.python-version == '3.11.0-alpha.5'
         # continue-on-error is not ideal since it doesn't give a visible
         # warning, but there doesn't seem to be anything better:
         # https://github.com/actions/toolkit/issues/399
@@ -81,7 +81,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v2
         with:
-          python-version: 3.10
+          python-version: '3.10'
 
       - name: Install base dependencies
         run: |
@@ -103,7 +103,7 @@ jobs:
       - name: Set up Python 3.10
         uses: actions/setup-python@v2
         with:
-          python-version: 3.10
+          python-version: '3.10'
 
       - name: Install base dependencies
         run: |