added test for uncommitted changes in deploy directory under go-test GH action.
Also, created a new make target named `make check-deploy-committed` that
can be used to verify the uncommitted changes.
Signed-off-by: Nikhil-Ladha <nikhilladha1999@gmail.com>
(cherry picked from commit 71cbf3d7eb661fcdcc86eb76628929b2dec5bc7c)