Bump chalk from 2.4.2 to 4.0.0

Bumps [chalk](https://github.com/chalk/chalk) from 2.4.2 to 4.0.0.
- [Release notes](https://github.com/chalk/chalk/releases)
- [Commits](https://github.com/chalk/chalk/compare/v2.4.2...v4.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -24,7 +24,7 @@
     "@babel/core": "^7.4.5",
     "@babel/preset-env": "^7.4.5",
     "auto-changelog": "^2.0.0",
-    "chalk": "^2.4.2",
+    "chalk": "^4.0.0",
     "cross-env": "^7.0.2",
     "eslint": "^5.16.0",
     "eslint-config-prettier": "^4.3.0",