Add Drupal.org CI testing for section_purge

Adding credit to DPC team members.

Kristen Pol → credited matthew.hallsworth.dpc → .

Kristen Pol → credited malks → .

Added for the 3 versions. Hopefully this is set up correctly... we can reopen this issue if not.

Didn't seem to kick in here so more to do:

✨ Drupal 10 compatibility RTBC

Thanks to @cmlara and @hestenet, this is now working.

The issue was, because automated tests were configured for the project *after* the MR had been created on the issue, changing status to Needs review wasn't sufficient.

Had to do a new commit in the MR. Now tests are running. Thanks, all!

Kristen Pol → credited cmlara → .

Kristen Pol → credited hestenet → .

Automatically closed - issue fixed for 2 weeks with no activity.