chore: disable dependency updates for s3uploader in kubernetes

This change modifies the renovate.json file to disable updates for the 
specific package 'registry.gitlab.com/unboundsoftware/s3uploader' 
when using the Kubernetes package manager. This action is taken to 
avoid conflicts and maintain stability in the project's deployment 
environment.

renovate.json

@@ -2,5 +2,16 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchManagers": [
+        "kubernetes"
+      ],
+      "matchPackageNames": [
+        "registry.gitlab.com/unboundsoftware/s3uploader"
+      ],
+      "enabled": false
+    }
   ]
 }