Update cluster-applications to v0.37.0

This upgrades Helm to 2.17.0, fixing a bug caused by the stable repo
deprecation:

- The bug: https://gitlab.com/gitlab-org/cluster-integration/cluster-applications/-/issues/69
- List of changes: https://gitlab.com/gitlab-org/cluster-integration/cluster-applications/compare/v0.36.0...v0.37.0

changelogs/unreleased/update-cluster-applications-to-0-37-0.yml

+---
+title: Update cluster-applications to v0.37.0
+merge_request: 50548
+author:
+type: fixed

doc/user/clusters/applications.md

@@ -100,7 +100,7 @@ include:
   - template: Managed-Cluster-Applications.gitlab-ci.yml
 
 apply:
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.34.1"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.37.0"
 ```
 
 ### Use the template with a custom environment

lib/gitlab/ci/templates/Managed-Cluster-Applications.gitlab-ci.yml

 apply:
   stage: deploy
-  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.36.0"
+  image: "registry.gitlab.com/gitlab-org/cluster-integration/cluster-applications:v0.37.0"
   environment:
     name: production
   variables: