chore: add missing executable permission for check-redis.sh

Author: T-vK

helm/oauth2-proxy/Chart.yaml

@@ -1,5 +1,5 @@
 name: oauth2-proxy
-version: 7.7.30
+version: 7.7.31
 apiVersion: v2
 appVersion: 7.7.1
 home: https://oauth2-proxy.github.io/oauth2-proxy/
@@ -35,7 +35,7 @@ kubeVersion: ">=1.16.0-0"
 annotations:
   artifacthub.io/changes: |
     - kind: fixed
-      description: Updated the Redis chart to the latest version.
+      description: Added missing executable permission for check-redis.sh
       links:
         - name: Github PR
-          url: https://github.com/oauth2-proxy/manifests/pull/253
+          url: https://github.com/oauth2-proxy/manifests/pull/255