Current behaviour may treat git+file combination as one being Zuul-treated
as when zuul_src_path is an empty string, path is still be located
and added as `zuul_item` while deployer might want it to be as local git
repo.
This patch adds another verification to ensure zuul_src_path
is defined and we're in CI before doing adjustments
Change-Id: I0acd3a14faf57d6c1bd64af9f36105df8b27b714