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

…ker tag to v1.29.0 (#705)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/bitnami/kubectl | minor | `1.28.4` -> `1.29.0` |

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charts/t8s-cluster/values.yaml

@@ -24,7 +24,7 @@ global:
     image:
       registry: docker.io
       repository: bitnami/kubectl
-      tag: 1.28.4
+      tag: 1.29.0
   semver:
     image:
       registry: docker.io