Services not working (searching, ogc-api) using documentation and docker-compose

Hi,
I built the code using `./mvnw clean install` on openJDK 11 as instructed in the readme. Then started the composition.

I'm getting two services that won't run:

- searching service, since gn-cloud-searching image was apparently not built by the mvnw clean install command
- ogc-records service fails to start with the following error `Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to determine a suitable driver class`. It's apparently a configuration issue, but I would have expected it to start out-of-the-box, no ?