fix(build): create sub-app make_pdf

.gitea/workflows/deploy_in_prod.yml

@@ -45,6 +45,12 @@ jobs:
           mkdir -p src/main/resources/META-INF/
           mv src/main/webapp/dist src/main/resources/META-INF/resources
 
+      - name: Build backend make_pdf tool
+        run: |
+          cd src/main/pdf_gen
+          mvn clean compile assembly:single
+          cd ../../..
+
       - name: Build backend
         run: |
           chmod 740 mvnw
@@ -57,7 +63,7 @@ jobs:
           username: ${{ secrets.SSH_USER }}
           port: ${{ secrets.SSH_PORT }}
           key: ${{ secrets.SSH_KEY }}
-          source: "target/*-runner,src/main/resources/cacerts,src/main/docker/Dockerfile.native,docker-compose.yml,.dockerignore"
+          source: "target/*-runner,src/main/resources/cacerts,src/main/docker/Dockerfile.native,docker-compose.yml,.dockerignore,src/main/pdf_gen/target/pdf_gen-*.jar"
           target: ${{ secrets.TARGET_DIR }} # Need to create it first on the VPS
 
       - name: Re-start ffsaf container