Build: make bra a local dependency (#17414)

Same idea as with the `gosec`, `revive` and etc.
Allows you to execute `make bra` as pinned local dependency instead
as global one. And therefore alleviates dependency installation issues.

README also updated - I was thinking to provide verbose installation instructions
for it. Since with that way we assume make is installed on the
developer system.

But it might be premature right now?