Currently the ng-dev release tool always run `bazel clean` before
calling the configured build release function. The clean is necessary
to ensure the release output is actually built; and not restored
from previous builds which could have different bazel workspace
status variables (which provide the NPM package version).
Instead of doing this as part of the release tool, the
actual script running to build the release output should
run the `bazel clean`. The release tool does not intend to
know about details on how the release output is built. This
is necessary because the build setup could vary between version
branches (especially for older ones; such as LTS version branches).
PR Close#42101
7fb8527e1e