Add missing dependencies for building pdf

Author: marc1706

.github/workflows/tests.yml

@@ -40,7 +40,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install fop
         run: |
-          sudo apt-get install -y fop
+          sudo apt-get install -y fop libxerces2-java libxalan2-java libserializer-java
       - name: Build pdf documentation
         working-directory: ${{ github.workspace }}/documentation
         run: |