Ugly stacktrace output during container environment detection

[Aklakan]

The code that checks whether the plugin is run from a container outputs error stacktraces during its probing. This needs to be cleaned up.

Inspection failed for candidate containerId raven-xps-17-9720. Trying next.
com.github.dockerjava.api.exception.NotFoundException: Status 404: {"message":"No such container: some-host-name"}

    at org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.execute (DefaultInvocationBuilder.java:241)
    at org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.get (DefaultInvocationBuilder.java:202)