build: run weasyprint integration tests during build process

.github/workflows/maven-release.yml

@@ -63,7 +63,7 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: test images
-          path: target/surefile-reports/**/*.png
+          path: /home/runner/work/ch.sbb.polarion.extension.pdf-exporter/ch.sbb.polarion.extension.pdf-exporter/target/surefire-reports/**/*.*
           retention-days: 1
       - name: Extract artefact version
         id: artefact_version