[release-v0.53.x] Update go-git/v5 for CVE-2023-49569

[vdemeester]

Changes

See CVE-2023-49569 (https://access.redhat.com/security/cve/cve-2023-49569)

/kind security
/cc @chitrangpatel @JeromeJu @dibyom @afrittoli

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Release Notes

Update go-git/v5 to latest (5.12) in order to fix CVE-2023-49569

[JeromeJu]

/lgtm

[chitrangpatel]

/approve

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