chore(base-cluster/dependencies): update docker.io/bitnami/kubectl do…

…cker tag to v1.31.0 (#907)

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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))
| minor | `1.29.8` -> `1.31.0` |

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charts/base-cluster/values.yaml

@@ -73,7 +73,7 @@ global:
     image:
       registry: docker.io
       repository: bitnami/kubectl
-      tag: 1.29.8@sha256:c466c706c2389e9c5e413994fda715e6f950e8f6cd1f8e29aa258def23f75b6e
+      tag: 1.31.0@sha256:44f99aa45e3410dae8e288f43800daa8a1bdb4cac204dad1de59c94f9c999bde
   flux:
     image:
       registry: docker.io