fix: loki dependency on sn-platform

Signed-off-by: ericsyh <ericshenyuhao@outlook.com>

Author: ericsyh

charts/sn-platform/requirements.yaml

@@ -3,11 +3,11 @@
 #
 
 dependencies:
-- name: loki-stack
-  version: 0.36.1
+- name: loki
+  version: 6.27.0
   repository: https://grafana.github.io/helm-charts
   condition: monitoring.loki
 #- name: superset
 #  version: 0.1.1
 #  repository:  https://apache.github.io/superset
-#  condition: components.superset
+#  condition: components.superset