Revert "Update git to 2.35.2 in docker images (#37712)"

Created by: varsanojidan

This reverts commit 04c98ab493e0889394e2e60fb85e1a53225e5a35.

There is a bug in the current release of git that causes sgm to corrupt repos with a commit-graph malformed error. Reverting this git version upgrade to avoid these corruptions while we find a more up to date version of git that doesn't have this bug.

See additional details here: https://github.com/sourcegraph/sourcegraph/pull/37906

Test plan

Existing tests pass