tree e70d0012570ffd73d63b9ab09d4cef6ce4139d4a
parent d40ad0beda6714afca0bb8627b24b172072829fe
author Patrick Williams <patrick@stwcx.xyz> 1727879672 -0400
committer Patrick Williams <patrick@stwcx.xyz> 1727894772 -0400

build-unit-test-docker: enable topic-based testing

There are cases when a phosphor-dbus-interfaces change is necessary
before (or at the same time) as a commit in another repository.
Maintainers will sometimes ignore review of a commit with failing CI
which prevents getting feedback necessary for the reviewer to move
forward with the entire set of changes.  Enable topic-based testing
in CI, which will prime the Docker container dependencies from a topic
on Gerrit.

In order to simplify this implementation and avoid having to figure out
commit application order (potentially across splits in the Git tree),
the topic must only have one commit from each repository.

Tested:

Confirmed both phosphor-dbus-interfaces and phosphor-logging selected
commits from the topic when building the Docker container with:
```
$ GERRIT_TOPIC=logging-create-with-path scripts/build-unit-test-docker
```

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I71831d992ec79a9d820456bd4a70e02d9000ebc2