chore(helm): update image docker.io/portainer/portainer-ee 2.31.0 → 2.31.1 (#36520)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/portainer/portainer-ee | patch | `3c1973c` -> `87273e4` |

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charts/stable/portainer/values.yaml

@@ -4,7 +4,7 @@ image:
   pullPolicy: IfNotPresent
 beImage:
   repository: docker.io/portainer/portainer-ee
-  tag: 2.31.0@sha256:3c1973cee47e2c7540b929af85d830cbe60729b004184d7405a39e22bbc0e4cb
+  tag: 2.31.1@sha256:87273e4424c70dc74df817dd980fa59b103397a1dc6d7b25c43efd43d86410b5
   pullPolicy: IfNotPresent
 portainer:
   # Logo URL