Set NoAutoTime when updating is_archived (#12266)

Fix #12246

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: Lauris BH <lauris@nix.lv>

models/repo.go

@@ -2072,7 +2072,7 @@ func CheckRepoStats(ctx context.Context) error {
 // SetArchiveRepoState sets if a repo is archived
 func (repo *Repository) SetArchiveRepoState(isArchived bool) (err error) {
 	repo.IsArchived = isArchived
-	_, err = x.Where("id = ?", repo.ID).Cols("is_archived").Update(repo)
+	_, err = x.Where("id = ?", repo.ID).Cols("is_archived").NoAutoTime().Update(repo)
 	return
 }