Fix cloning requirements when GIT_DEPTH is set

We always need the master branch of requirements in order to be able to
install tempest with it, so override GIT_DEPTH when cloning that repo.

Closes-Bug: 1956616
Change-Id: Id0b409bfadd73f2c30314724178d6e199121050b
Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
1 file changed