update bitnami repository and make version of package fixed (signalfx#2069)

Author: omrozowicz-splunk

functional_tests/discovery/discovery_test.go

@@ -190,6 +190,7 @@ func installRedisChart(t *testing.T, kubeConfig string) {
 	install.Namespace = internal.DefaultNamespace
 	install.ReleaseName = redisReleaseName
 	install.RepoURL = redisChartRepo
+	install.Version = "22.0.7"
 	install.Wait = true
 	install.Timeout = internal.HelmActionTimeout
 	hCli := cli.New()
@@ -209,6 +210,9 @@ func installRedisChart(t *testing.T, kubeConfig string) {
 		"replica": map[string]any{
 			"replicaCount": 0,
 		},
+		"image": map[string]any{
+			"repository": "bitnamilegacy/redis",
+		},
 	})
 	require.NoError(t, err)
 	t.Logf("Helm chart installed. Release name: %s", release.Name)