changed DB variables to entire URI

docker-compose.yml

@@ -5,7 +5,7 @@ services:
     image: ngoduykhanh/powerdns-admin:${PDA_VERSION}
     restart: always
     environment:
-      - SQLALCHEMY_DATABASE_URI=mysql://${MYSQL_USER}:${MYSQL_PASS}@host.docker.internal/${MYSQL_DBNAME}
+      - SQLALCHEMY_DATABASE_URI=${PDA_DBURI}
       - GUNICORN_TIMEOUT=60
       - GUNICORN_WORKERS=2
       - GUNICORN_LOGLEVEL=INFO