No option to run tests without deploying

[stuart23]

I am trying to add a workflow to just run pytest and not deploy any changes. This is triggered by the pull-request workflow trigger, so its just checking that the changes in the PR wont cause an error when the PR is merged and changes are deployed.

Could we please have an option to just run the equivalent of astro dev pytest?

[gasci]

Please proceed with this. We also need the same functionality.

It would be great to add a test action.