CI+RTD: Use Python 3.11

.github/workflows/docs.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.11
+          python-version: '3.11'
       - name: Build docs
         run: |
           cd docs && make check

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-        - 3.8
+        - '3.11'
     steps:
       - name: Checkout
         uses: actions/checkout@v2

.github/workflows/release.yaml

@@ -9,10 +9,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-      - name: Set up Python 3.8
+      - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: '3.11'
       - name: Install setuptools and wheel
         run: |
           python -m pip install --upgrade pip setuptools wheel packaging

.readthedocs.yml

@@ -3,7 +3,7 @@ version: 2
 build:
   os: "ubuntu-22.04"
   tools:
-    python: "3.10"
+    python: "3.11"
 
 sphinx:
   builder: html