chore(deps): update container image chronograf to latest@b9c52b5 by renovate (#18287)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| chronograf | digest | `0acb51c` -> `b9c52b5` |

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This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xOTguMCIsInVwZGF0ZWRJblZlciI6IjM3LjE5OC4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/stable/chronograf/Chart.yaml

@@ -23,7 +23,7 @@ icon: https://truecharts.org/img/hotlink-ok/chart-icons/chronograf.png
 keywords:
   - chronograf
   - Tools-System
-kubeVersion: ">=1.24.0-0"
+kubeVersion: '>=1.24.0-0'
 maintainers:
   - name: TrueCharts
     email: info@truecharts.org
@@ -34,4 +34,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/chronograf
   - https://hub.docker.com/_/chronograf
 type: application
-version: 4.2.0
+version: 4.2.1

charts/stable/chronograf/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: chronograf
-  tag: latest@sha256:0acb51cbf8377d9ad8addcefd204ed3162a421b8869ecdcd5fa18347ca8fee32
+  tag: latest@sha256:b9c52b548066f3b4ed876dcb3e5f0a652548dd41cc7e7f2f42c3700dd29eab0e
 persistence:
   chronograf:
     enabled: true