CI: Update used actions and Python versions (#721)

Update the used actions and the Python versions in the GitHub Actions CI workflows.

Author: EwoutH

.github/workflows/python-package.yml

@@ -6,15 +6,15 @@ jobs:
   code-quality:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: "3.12"
 
       - name: Cache Poetry
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/pypoetry
@@ -33,18 +33,18 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10", 3.11, pypy-3.8]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.10"]
     runs-on: ${{ matrix.platform }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Cache Poetry
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/pypoetry
@@ -65,12 +65,12 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: "3.12"
 
       - name: Cache Poetry
         uses: actions/cache@v2

.github/workflows/python-publish.yml

@@ -10,15 +10,15 @@ jobs:
     name: "Publish library"
     steps:
       - name: Check out
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: "${{ secrets.GITHUB_TOKEN }}"
           fetch-depth: 0
 
       - name: Setup Python Env
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
-          python-version: '3.9'
+          python-version: "3.12"
 
       - name: Install dependencies
         run: pip install poetry dunamai