chore(helm): update image docker.io/modem7/newyearcountdown digest to 39da55a (#34843)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/modem7/newyearcountdown | digest | `74cc3f7` -> `39da55a` |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

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### Configuration

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🚦 **Automerge**: Enabled.

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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charts/stable/newyearcountdownclock/Chart.yaml

@@ -37,5 +37,5 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/newyearcountdownclock
   - https://hub.docker.com/r/modem7/newyearcountdown
 type: application
-version: 7.5.2
+version: 7.5.3
 

charts/stable/newyearcountdownclock/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/modem7/newyearcountdown
-  tag: latest@sha256:74cc3f7131ea569efb01c5a5249c8b069b5c8024c8313339b772d8bba56eb6c5
+  tag: latest@sha256:39da55a3f174542580216bc52478aa8ece9243fce67429c22064afc5469fd82e
 persistence: {}
 
 securityContext: