chore(deps): update flyway/flyway docker tag to v13

Author: renovate[bot]

backend-py/db/Dockerfile

@@ -1,4 +1,4 @@
-FROM flyway/flyway:12-alpine
+FROM flyway/flyway:13-alpine
 # Non-root user
 RUN adduser -D app
 USER app

docker-compose.yml

@@ -45,7 +45,7 @@ services:
 
   migrations-py:
     profiles: ["python", "all"]
-    image: flyway/flyway:12-alpine
+    image: flyway/flyway:13-alpine
     container_name: migrations-py
     command: info migrate info
     volumes: ["./backend-py/db/migrations:/flyway/sql:ro"]