ci(renovate): Apply automatic upgrades also using Earthly

renovate.json

@@ -71,7 +71,7 @@
       "versioningTemplate": "docker"
     },
     {
-      "fileMatch": ["Dockerfile$"],
+      "fileMatch": ["Dockerfile$","Earthfile$"],
       "matchStrings": [
         "#\\s*renovate:\\s*datasource=(?<datasource>.*?) depName=(?<depName>.*?)( versioning=(?<versioning>.*?))?\\sENV .*?_VERSION=\"(?<currentValue>.*)\"\\s"
       ],