Update default tests to 3.11

.github/workflows/on-push.yml

@@ -25,7 +25,7 @@ jobs:
     - uses: pre-commit/[email protected]
 
   unit-tests:
-    name: unit-tests (3.10)
+    name: unit-tests (3.11)
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -40,9 +40,9 @@ jobs:
         environment-name: DEVELOP
         channels: conda-forge
         cache-env: true
-        cache-env-key: ubuntu-latest-3.10
+        cache-env-key: ubuntu-latest-3.11
         extra-specs: |
-          python=3.10
+          python=3.11
     - name: Install package
       run: |
         python -m pip install --no-deps -e .
@@ -71,9 +71,9 @@ jobs:
         environment-name: DEVELOP
         channels: conda-forge
         cache-env: true
-        cache-env-key: ubuntu-latest-3.10
+        cache-env-key: ubuntu-latest-3.11
         extra-specs: |
-          python=3.10
+          python=3.11
     - name: Install package
       run: |
         python -m pip install --no-deps -e .
@@ -90,12 +90,12 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.9', '3.8']
+        python-version: ['3.10', '3.9', '3.8']
         extra: ['']
         include:
         - python-version: '3.8'
           extra: -minver
-        - python-version: '3.10'
+        - python-version: '3.11'
           extra: -mindep
     steps:
     - uses: actions/checkout@v4