[FIX] Change depth of 10 to 1 on git clone of odoo repo

[JesusZapata]

Change depth of 10 to 1 on git clone of odoo repo

[JesusZapata]

@moylop260
We could save considerable time by lowering the depth of the clone

[JesusZapata]

@ruiztulio @moylop260
What impact would lower the depth of the clone of odoo

[moylop260]

The docker hub dont have timeout problem for this matter.
And this build spent 41 minutes similar to 41 minutes of stable branch build.

Travis build all images even.
Then we need detect what is the folder changed to build just that image and reduce the time of a job.
Similar to mqt where detect changes from pylint_test

[JesusZapata]

Sorry for openen this PR but i consider what the parameter --depth=10 is unnecessary
We can save time and storage if only changed --depth=10 for --depth=1

I show my server load when clone is --depth=10

The command git --git-dir="${REPO_REQUIREMENTS}/odoo/.git" gc --aggressive used very CPU

@moylop260
What do you think about this?

[JesusZapata]

I will close this PR because when made push of one branch and this branch only have one commit on depth, the git show error "Unable to push new commit from shallow clone"