renovate.json

{
  "extends": [
    "config:base"
  ],
  "regexManagers": [
    {
      "fileMatch": ["^dependencies\\.properties$"],
      "matchStrings": ["=(?<depName>.*?):(?<currentValue>.*?)\\n"],
      "datasourceTemplate": "maven"
    },
    {
      "fileMatch": ["^dependencies\\.properties$"],
      "matchStrings": ["version\\.com_google_protobuf=(?<currentValue>.*?)\\n"],
      "depNameTemplate": "com.google.protobuf:protobuf-java",
      "datasourceTemplate": "maven"
    },
    {
      "fileMatch": ["^dependencies\\.properties$"],
      "matchStrings": ["version\\.google_java_format=(?<currentValue>.*?)\\n"],
      "depNameTemplate": "com.google.googlejavaformat:google-java-format",
      "datasourceTemplate": "maven"
    },
    {
      "fileMatch": ["^dependencies\\.properties$"],
      "matchStrings": ["version\\.io_grpc=(?<currentValue>.*?)\\n"],
      "depNameTemplate": "io.grpc:grpc-core",
      "datasourceTemplate": "maven"
    }
  ]
}