[FW][IMP] conf: hide saas branches from the version switcher

[fw-bot]

Forward-Port-Of: #1126

[robodoo]

Pull request status dashboard.

[fw-bot]

Ping @AntoineVDV cherrypicking of pull request #1126 failed.

stdout:

On branch saas-14.5-12.0-hide_saas_branches-anvfe-iiep-fw
You are currently cherry-picking commit 708382a6.

nothing to commit, working tree clean

stderr:

10:32:01.075474 git.c:344               trace: built-in: git cherry-pick 708382a6c694335a5e745004eb1a164b03eb89ba
10:32:03.848347 run-command.c:646       trace: run_command: git commit -n -F .git/MERGE_MSG --cleanup=verbatim
10:32:03.852599 git.c:344               trace: built-in: git commit -n -F .git/MERGE_MSG --cleanup=verbatim
The previous cherry-pick is now empty, possibly due to conflict resolution.
If you wish to commit it anyway, use:

    git commit --allow-empty

Otherwise, please use 'git reset'
----------
status:

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.

[AntoineVDV]

Already done in saas-14.5.