ci: Update test runner to run on ubuntu-22.04 with Python 3.10

Author: Eta0

.github/workflows/build.yml

@@ -7,13 +7,13 @@ on:
 jobs:
   build_dist:
     name: Build distribution on Ubuntu
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
 
       - uses: actions/setup-python@v3
         with:
-          python-version: '3.8'
+          python-version: '3.10'
 
       - name: Install build dependencies
         run: python -m pip install --no-cache-dir -U setuptools build
@@ -28,7 +28,7 @@ jobs:
   upload_dist:
     needs: [ build_dist ]
     name: Upload distribution to PyPI
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     if: github.event_name == 'release' && github.event.action == 'published'
     steps:
       - uses: actions/download-artifact@v3

.github/workflows/test.yml

@@ -5,13 +5,13 @@ on: [push, pull_request]
 jobs:
   run_tests:
     name: Run tests
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
 
       - uses: actions/setup-python@v3
         with:
-          python-version: '3.8'
+          python-version: '3.10'
           cache: 'pip'
 
       - name: Install dependencies