Update versions of github actions to fix deprecation warnings

.github/workflows/release.yml

@@ -14,12 +14,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v4
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v5
       with:
-        python-version: "3.10"
+        python-version: "3.12"
 
     - name: Install dependencies
       run: python -m pip install --upgrade pip build

.github/workflows/run-examples.yml

@@ -15,13 +15,13 @@ 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", "3.12"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -40,7 +40,7 @@ jobs:
         NO_DISPLAY=1 python water_boiler.py
 
     - name: Upload resulting figures
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: result-py${{ matrix.python-version }}.png
         path: examples/water_boiler/result-py${{ matrix.python-version }}.png

.github/workflows/run-tests.yml

@@ -15,13 +15,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "pypy-3.9"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.10"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}