Bump chalk from 2.4.2 to 4.1.0

Bumps [chalk](https://github.com/chalk/chalk) from 2.4.2 to 4.1.0.
- [Release notes](https://github.com/chalk/chalk/releases)
- [Commits](chalk/chalk@v2.4.2...v4.1.0)

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

package.json

@@ -37,7 +37,7 @@
     "@octokit/webhooks": "^8.5.3",
     "body-parser": "^1.19.0",
     "boxen": "^4.2.0",
-    "chalk": "^2.4.2",
+    "chalk": "^4.1.0",
     "cli-boxes": "^3.0.0",
     "commander": "^7.1.0",
     "cross-env": "^7.0.3",