Ensures that the `material-unit-tests` job does not accidentally build
subpackages of the `src/dev-app` in the components repo. This is now
an issue because the components repository updated their dev-app
to use Bazel with more individual subpackages. These subpackages
are not excluded by the `--deleted_packages` flag.
For best practice, we should use the exclusion target pattern
instead of the undocumented `--deleted_packages` flag anyway.
PR Close#32485
7059f7af11