Use 3.11 for Github actions

Closes #5920

Author: Pierre-Sassoulas

.github/workflows/tests.yaml

@@ -21,7 +21,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- python-version: [3.7, 3.8, 3.9, "3.10"]
+ python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
  outputs:
  python-key: ${{ steps.generate-python-key.outputs.key }}
  steps:
@@ -174,7 +174,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- python-version: [3.7, 3.8, 3.9, "3.10"]
+ python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
  steps:
  - name: Set temp directory
  run: echo "TEMP=$env:USERPROFILE\AppData\Local\Temp" >> $env:GITHUB_ENV