chore(dep): bump app version to 7.15.2 (#406)

Signed-off-by: Jan Larwig <jan@larwig.com>

Author: tuunit

helm/oauth2-proxy/Chart.yaml

@@ -1,7 +1,7 @@
 name: oauth2-proxy
-version: 10.4.2
+version: 10.4.3
 apiVersion: v2
-appVersion: 7.15.1
+appVersion: 7.15.2
 home: https://oauth2-proxy.github.io/oauth2-proxy/
 description: A reverse proxy that provides authentication with Google, Github or other providers
 keywords:
@@ -31,7 +31,7 @@ kubeVersion: ">=1.16.0-0"
 annotations:
   artifacthub.io/changes: |
     - kind: changed
-      description: Bump OAuth2 Proxy image to v7.15.1
+      description: Bump OAuth2 Proxy image to v7.15.2
       links:
         - name: GitHub PR
-          url: https://github.com/oauth2-proxy/manifests/pull/403
+          url: https://github.com/oauth2-proxy/manifests/pull/406