Make all automated commits run smoke tests prior to pushing

Summary:
It's a good idea to make sure that the happy path build is green and some unit tests and functional tests pass.
It's not feasible to test everything, as we don't want automatic commits to take a long time, otherwise we risk
merge conflicts. But, we can be reasonably confident that nothing is catastrophically broken, and CI will pick up the
rest once the change is detected by Teamcity.

Depends on D5269

Test Plan: See D5269

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D5270