fix: add bumpVersion

renovate.json

@@ -52,7 +52,13 @@
       "groupName": "{{#if packageName}}{{{replace 'ghcr.io/' '' (replace 'docker.io/' '' packageName)}}}{{else}}{{{replace 'ghcr.io/' '' (replace 'docker.io/' '' depName)}}}{{/if}}",
       "groupSlug": "unified-{{{groupName}}}",
       "addLabels": ["image"],
-      "automerge": false
+      "bumpVersions": [
+        {
+          "filePatterns": ["{{packageFileDir}}/Chart.{yaml,yml}"],
+          "matchStrings": ["version:\\s(?<version>[^\\s]+)"],
+          "bumpType": "{{#if isPatch}}patch{{else}}minor{{/if}}"
+        }
+      ]
     },
     {
       "description": "Automerge generic-device-plugin image on digest",