Update HTK stable commit to 0.2.19

Update helm-toolkit stable commit to merge of this change:
https://review.opendev.org/c/openstack/openstack-helm-infra/+/802925

Change-Id: Iafd86a087dbf04ce49c8d0a427305219d1d0483e

tools/helm_tk.sh

@@ -18,7 +18,7 @@
 HELM=$1
 HTK_REPO=${HTK_REPO:-"https://github.com/openstack/openstack-helm-infra"}
 HTK_PATH=${HTK_PATH:-""}
-HTK_STABLE_COMMIT=${HTK_COMMIT:-"4fe6212dad6e3f07d43122485d60ab8f38642293"}
+HTK_STABLE_COMMIT=${HTK_COMMIT:-"9797d1b034529c9739c19a30193c3605321fcf91"}
 DEP_UP_LIST=${DEP_UP_LIST:-"maas"}
 
 if [[ ! -z $(echo $http_proxy) ]]