fix: cache helm-index in Redis cluster (argoproj#12314) (argoproj#19530)

* fix: cache helm-index in Redis cluster

Signed-off-by: JenTing Hsiao <hsiaoairplane@gmail.com>

* Update repository.go

Fix order

Signed-off-by: Dan Garfield <dan@codefresh.io>

---------

Signed-off-by: JenTing Hsiao <hsiaoairplane@gmail.com>
Signed-off-by: Dan Garfield <dan@codefresh.io>
Co-authored-by: Dan Garfield <dan@codefresh.io>

reposerver/repository/repository.go

@@ -2508,7 +2508,7 @@ func checkoutRevision(gitClient git.Client, revision string, submoduleEnabled bo
 }
 
 func (s *Service) GetHelmCharts(ctx context.Context, q *apiclient.HelmChartsRequest) (*apiclient.HelmChartsResponse, error) {
-	index, err := s.newHelmClient(q.Repo.Repo, q.Repo.GetHelmCreds(), q.Repo.EnableOCI, q.Repo.Proxy, q.Repo.NoProxy, helm.WithChartPaths(s.chartPaths)).GetIndex(true, s.initConstants.HelmRegistryMaxIndexSize)
+	index, err := s.newHelmClient(q.Repo.Repo, q.Repo.GetHelmCreds(), q.Repo.EnableOCI, q.Repo.Proxy, q.Repo.NoProxy, helm.WithIndexCache(s.cache), helm.WithChartPaths(s.chartPaths)).GetIndex(true, s.initConstants.HelmRegistryMaxIndexSize)
 	if err != nil {
 		return nil, err
 	}