Testing: pr 11340 test flakiness

.github/workflows/main.yml

@@ -13,7 +13,7 @@ env:
   FORCE_COLOR: "1"
   PYTHONDEVMODE: "1"  # -X dev
   PYTHONWARNDEFAULTENCODING: "1"  # -X warn_default_encoding
-  PYTHONWARNINGS: "error,always:unclosed:ResourceWarning::"  # default: all warnings as errors, except ResourceWarnings about unclosed items
+  PYTHONWARNINGS: "error"
 
 jobs:
   ubuntu:
@@ -23,11 +23,9 @@ jobs:
       fail-fast: false
       matrix:
         python:
-        - "3.8"
         - "3.9"
         - "3.10"
         - "3.11"
-        - "3.12-dev"
         docutils:
         - "0.18"
         - "0.19"
@@ -68,49 +66,3 @@ jobs:
         PYTHONWARNINGS: ""
     - name: Test with pytest
       run: python -m pytest -vv --durations 25
-
-  windows:
-    runs-on: windows-2019
-    name: Windows
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: 3
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install .[test]
-      env:
-        PYTHONWARNINGS: ""
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-
-  docutils-latest:
-    runs-on: ubuntu-latest
-    name: Docutils HEAD
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python 3
-      uses: actions/setup-python@v4
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install .[test]
-      env:
-        PYTHONWARNINGS: ""
-    - name: Install Docutils' HEAD
-      run: python -m pip install git+https://repo.or.cz/docutils.git\#subdirectory=docutils
-      env:
-        PYTHONWARNINGS: ""
-    - name: Test with pytest
-      run: python -m pytest -vv