chore(docker): update image docker digest to 68f6d9a (#45730)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker | digest | `8bcbad4` → `68f6d9a` |

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charts/stable/docker/Chart.yaml

@@ -39,5 +39,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/docker
   - https://hub.docker.com/_/docker
 type: application
-version: 12.8.0
+version: 12.8.1
 

charts/stable/docker/values.yaml

@@ -2,7 +2,7 @@
 image:
   repository: docker
   pullPolicy: IfNotPresent
-  tag: 29.2.1-dind@sha256:8bcbad4b45f0bff9d3e809d85a7ac589390f0be8acbc526850c998c35c1243fd
+  tag: 29.2.1-dind@sha256:68f6d9ab84623d1116c5432a3b924a07ee09960e6129ca1cb03ef14010588cb4
 hostNetwork: true
 securityContext:
   container: