サイトを更新した時にアラートを出しているプラグインがどれなのかわからない

Gatsby.jsで作ったwebサイトを更新（ビルド、アップロード）してサイトにアクセスすると以下のようなアラート？が表示されてOKを押すと最新の状態に更新してくれます。

この文字が英語なので変更したいのですが、このアラートを制御しているプラグインがどれなのかわかりません。
よろしくお願いします。

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package.json

{
  "name": "gatsby-starter-default",
  "private": true,
  "description": "A simple starter to get up and developing quickly with Gatsby",
  "version": "0.1.0",
  "author": "Kyle Mathews <mathews.kyle@gmail.com>",
  "dependencies": {
    "gatsby": "^2.8.5",
    "gatsby-image": "^2.1.2",
    "gatsby-plugin-canonical-urls": "^2.0.13",
    "gatsby-plugin-feed": "^2.2.3",
    "gatsby-plugin-google-analytics": "^2.0.21",
    "gatsby-plugin-manifest": "^2.1.1",
    "gatsby-plugin-offline": "^2.1.1",
    "gatsby-plugin-react-helmet": "^3.0.12",
    "gatsby-plugin-robots-txt": "^1.4.0",
    "gatsby-plugin-sass": "^2.0.11",
    "gatsby-plugin-sharp": "^2.1.3",
    "gatsby-plugin-sitemap": "^2.1.0",
    "gatsby-plugin-twitter": "^2.0.13",
    "gatsby-source-filesystem": "^2.0.38",
    "gatsby-source-wordpress": "^3.0.64",
    "gatsby-transformer-sharp": "^2.1.21",
    "node-sass": "^4.12.0",
    "prop-types": "^15.7.2",
    "react": "^16.8.6",
    "react-dom": "^16.8.6",
    "react-helmet": "^5.2.1",
    "typeface-megrim": "^0.0.72",
    "typeface-notosans-jp": "^1.0.1",
    "typeface-quicksand": "^0.0.71"
  },
  "devDependencies": {
    "prettier": "^1.18.0"
  },
  "keywords": [
    "gatsby"
  ],
  "license": "MIT",
  "scripts": {
    "build": "gatsby build",
    "develop": "gatsby develop",
    "format": "prettier --write src/**/*.{js,jsx}",
    "start": "npm run develop",
    "serve": "gatsby serve",
    "test": "echo \"Write tests! -> https://gatsby.dev/unit-testing\""
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/gatsbyjs/gatsby-starter-default"
  },
  "bugs": {
    "url": "https://github.com/gatsbyjs/gatsby/issues"
  }
}