chore(deps): update container image mikeah/prusaslicer-novnc to latest@15b3cf5 by renovate (#16437)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| mikeah/prusaslicer-novnc | digest | `d4fafb2` -> `15b3cf5` |

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This PR has been generated by [Renovate
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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4xMDcuMCIsInVwZGF0ZWRJblZlciI6IjM3LjEwNy4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/stable/prusaslicer-novnc/Chart.yaml

@@ -1,7 +1,7 @@
-kubeVersion: ">=1.24.0-0"
+kubeVersion: '>=1.24.0-0'
 apiVersion: v2
 name: prusaslicer-novnc
-version: 6.0.11
+version: 6.0.12
 appVersion: latest
 description: Enjoy Prusaslicer directly in your browser with this easy to use Chart Chart.
 home: https://truecharts.org/charts/stable/prusaslicer-novnc

charts/stable/prusaslicer-novnc/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: mikeah/prusaslicer-novnc
-  tag: latest@sha256:d4fafb2c5782d575680e0b24894e6cf0884543291f83fcfbadbe63a92086dac2
+  tag: latest@sha256:15b3cf5bc108d150026b8dc4dc2af94826fe1036e52f7ac102584951e426432c
 persistence:
   configsfolder:
     enabled: true