Keep Github unit tests running even if their siblings fail

.github/workflows/python.yml

@@ -12,6 +12,7 @@ jobs:
  strategy:
  matrix:
  python-version: [ "3.9", "3.10", "3.11", "3.12" ]
+ continue-on-error: true
  steps:
  - uses: actions/checkout@v4
  - name: Set up Python ${{ matrix.python-version }}