chore(base-cluster/dependencies): pin docker.io/vladgh/gpg docker tag…

… to 1ba48a7 (#1076)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [docker.io/vladgh/gpg](https://togithub.com/vladgh/docker_base_images)
| pinDigest | -> `1ba48a7` |

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charts/base-cluster/values.yaml

@@ -83,7 +83,7 @@ global:
     image:
       registry: docker.io
       repository: vladgh/gpg
-      tag: 1.3.5
+      tag: 1.3.5@sha256:1ba48a77aad3e2ea15632e3e0520df8929e94d8be8b1d98f8d4514b4deb20737
   curl:
     image:
       registry: docker.io