Merge branch 'release-tools/update-gitaly' into 'master'

Update Gitaly version

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/118292



Merged-by: release-tools approver bot <project278964_bot6@example.com>
Approved-by: release-tools approver bot <project278964_bot6@example.com>
Co-authored-by: GitLab Release Tools Bot <delivery-team+release-tools@gitlab.com>

GITALY_SERVER_VERSION

-a69ac6a466120a1e7f50ec21fe09d546cf22f279
+a7a4ed3bafec15c90d064bd5b7a0c572fa38411d