Use 3.11 for Github actions

Closes #5920

Author: Pierre-Sassoulas

.github/workflows/primer-test.yaml

@@ -27,7 +27,7 @@ jobs:
     timeout-minutes: 5
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10", "3.11-dev"]
     outputs:
       python-key: ${{ steps.generate-python-key.outputs.key }}
     steps:
@@ -69,7 +69,7 @@ jobs:
     needs: prepare-tests-linux
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10", "3.11-dev"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2
@@ -104,7 +104,7 @@ jobs:
     needs: prepare-tests-linux
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10", "3.11-dev"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2

.github/workflows/primer_comment.yaml

@@ -34,7 +34,7 @@ jobs:
         id: python
         uses: actions/setup-python@v4.0.0
         with:
-          python-version: "3.10"
+          python-version: "3.11-dev"
 
       # Restore cached Python environment
       - name: Generate partial Python venv restore key

.github/workflows/primer_run_main.yaml

@@ -24,7 +24,7 @@ jobs:
     timeout-minutes: 45
     strategy:
       matrix:
-        python-version: ["3.7", "3.10"]
+        python-version: ["3.7", "3.11-dev"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2

.github/workflows/primer_run_pr.yaml

@@ -33,7 +33,7 @@ jobs:
     timeout-minutes: 120
     strategy:
       matrix:
-        python-version: ["3.7", "3.10"]
+        python-version: ["3.7", "3.11-dev"]
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@v3.0.2

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