Use JDK 17 in CI

Required by ECF in Karaf

.github/workflows/ci-build.yml

@@ -17,20 +17,29 @@ jobs:
         python-version: ["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 }}
 
+      - name: Use JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install pytest
           pip install -r requirements.txt
 
-      - name: Run unit tests
+      - name: Start test infrastructure
         run: |
           find tests-infra -name compose.yaml -exec docker compose -f {} up -d \;
+
+      - name: Run unit tests
+        run: |
           python -m pytest tests