feat: update Python version matrix for integration tests

Author: eleanorjboyd

.github/workflows/pr-check.yml

@@ -83,6 +83,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.9', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -97,7 +98,7 @@ jobs:
       - name: Install Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          python-version: ${{ matrix.python-version }}
 
       - name: Install Dependencies
         run: npm ci
@@ -132,6 +133,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.9', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -146,7 +148,7 @@ jobs:
       - name: Install Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          python-version: ${{ matrix.python-version }}
 
       - name: Install Dependencies
         run: npm ci
@@ -181,6 +183,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ['3.9', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -195,7 +198,7 @@ jobs:
       - name: Install Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.PYTHON_VERSION }}
+          python-version: ${{ matrix.python-version }}
 
       - name: Install Dependencies
         run: npm ci