[Elao - App -Docker] Speed up git release

[maximecolin]

With large git repo, git fetch here can be very long. The option --depth=1 will limit the fetched commit to the last one, improving the speed of the task.

On my project:

Task	without --depth=1	with --depth=1
release : git > Init only	3'49"	1'18"
full release + deploy	6'36"	3'41"

[nervo]

It looks like the equivalent of fetch-depth on checkout github action which is also 1 by default :) So i guess we don't take any risks.