Don't show DryRun scripts as "Running" in the output

[Tradioyes]

Is your feature request related to a problem? Please describe.
I had a scare while trying scripts before a migration from roundhouse, because when I ran my scripts with the --dryrun option, they still showed as "Running" in the output as opposed to "DryRun" like in RoundHouse.

Describe the solution you'd like
The output could be differentiated when in DryRun mode

Additional context
I think the fix can be done there (and maybe some other places, I have to check) https://github.com/erikbra/grate/blob/main/src/grate.core/Migration/DbMigrator.cs#L90 , I'll try to do it myself next week and send a PR