chore: use renovate preset config

renovate.json

@@ -1,15 +1,6 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["config:base"],
-  "ignorePresets": [":prHourlyLimit2"],
-  "regexManagers": [
-    {
-      "fileMatch": ["^Dockerfile$"],
-      "matchStrings": [
-        "# renovate: datasource=(?<datasource>\\S+) depName=(?<depName>\\S+)( versioning=(?<versioning>.*?))?\\nENV .*?_VERSION=\"\\${.*:-(?<currentValue>.*)}\"\\s"
-      ]
-    }
-  ],
+  "extends": ["github>thegeeklab/renovate-presets:docker"],
   "packageRules": [
     {
       "datasources": ["github-releases"],
@@ -18,8 +9,5 @@
       "packagePatterns": ["^hairyhenderson", "^aptible", "^thegeeklab"],
       "automerge": true
     }
-  ],
-  "droneci": {
-    "enabled": false
-  }
+  ]
 }