Grafana 11.5 with database backend configured via URL setting fails to start

### What happened? I'm deploying Grafana in Azure as a container app and it's exclusively configured via environment variables including the backend database settings. In Grafana 11.5.2 the container starts and finds the postgres URL `logger=settings t=2025-03-17T22:03:10.926734901Z level=info msg="Config overridden from Environment variable" var="GF_DATABASE_URL=postgres://grafana:xxxxx@yyyyy"` It successfully connects to postgres and runs the migrations. So far so good. Then it loads the plugins and proceeds to start something called `resource-server` which I have no idea what that it is, but it misses the URL environment ``` Error: ✗ initialize Resource Server: initialize resource DB: run migrations: dial tcp 127.0.0.1:3306: connect: connection refused Config overridden from Environment variable" var="GF_DATABASE_SSL_MODE=require" Config overridden from Environment variable" var="GF_DATABASE_TYPE=postgres" ``` It finds the database type settings but not the URL The only place I found that instantiates the `resource-server` logger is this: https://github.com/grafana/grafana/blob/main/pkg/storage/unified/resource/server.go#L193 Grafana 11.4.2 starts fine with the same container config. Either this is something new in 11.5 or it got broken after 11.4.2 ### What did you expect to happen? I would expect Grafana 11.5 to start up ### Did this work before? Yes, 11.4.2 starts up just fine. ### How do we reproduce it? 1. Run Grafana as container with an external Postgres server as backend configured via `GF_DATABASE_URL` environment variable ### Environment (with versions)? Grafana: 11.5.2 OS: Linux Browser: - ### Grafana platform? Azure Container App