Makefile: Deduplicate the version of the Git distribution

Typically, we have up to three different Git versions in Gitaly:

    - Two bundled Git versions that can be toggled with a feature flag.

    - The distributed Git version.

The distributed Git version will always be matching one of the bundled
Git versions, namely the one that is the current default. So let's
deduplicate these versions and just reuse the bundled Git's version so
that we don't need to remember updating the version in multiple places
on minor version bumps.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index a73ea74a6..cf7f1a6b7 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,7 @@ SKIP_OVERRIDING_GIT_VERSION ?=
 # The default version is used in case the caller does not set the variable or
 # if it is either set to the empty string or "default".
 ifeq (${GIT_VERSION:default=},)
-    override GIT_VERSION := v2.38.3.gl1
+    override GIT_VERSION := ${GIT_VERSION_2_38}
 else
     # Support both vX.Y.Z and X.Y.Z version patterns, since callers across GitLab
     # use both.