Moved database module to separate library

requirements.txt

@@ -8,6 +8,7 @@ cryptography==46.0.2
 fastapi==0.118.0
 h11==0.16.0
 idna==3.10
+lib-db-module @ git+https://git.gansejunge.com/notifier/lib-db-module.git@main
 lib-secret-manager[encryption] @ git+https://git.gansejunge.com/notifier/lib-secret-manager.git@main
 lib-uvicorn-config @ git+https://git.gansejunge.com/notifier/lib-uvicorn-config.git@main
 mysql-connector-python==9.4.0