chore(t8s-cluster/dependencies): update docker.io/bitnami/kubectl doc…

…ker tag to v1.29.6 (#961)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [docker.io/bitnami/kubectl](https://togithub.com/bitnami/containers)
([source](https://togithub.com/bitnami/containers/tree/HEAD/bitnami/kubectl))
| patch | `1.29.4` -> `1.29.6` |

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charts/t8s-cluster/values.yaml

@@ -24,7 +24,7 @@ global:
     image:
       registry: docker.io
       repository: bitnami/kubectl
-      tag: 1.29.4
+      tag: 1.29.6@sha256:4b4b33a40764b0dc1243b6f4fc6f62dd877cd632d49131fff8df3744602a3ec0
   semver:
     image:
       registry: docker.io