Update Gitaly version to 14.8.6

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Update Gitaly version to 14.8.6
9e57fc12 · GitLab Release Tools Bot · d6a93658 · 9e57fc12
Commit 9e57fc12 authored 2 years ago by GitLab Release Tools Bot
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
-14.8.5
\ No newline at end of file
+14.8.6
\ No newline at end of file