chore(deps): update dependency @octokit/webhooks-definitions to v1.4.2

Author: renovate-bot

package.json

@@ -17,7 +17,7 @@
     "@commitlint/cli": "7.5.2",
     "@commitlint/config-conventional": "7.5.0",
     "@commitlint/prompt-cli": "7.5.0",
-    "@octokit/webhooks-definitions": "1.1.2",
+    "@octokit/webhooks-definitions": "1.4.2",
     "@types/bluebird": "3.5.20",
     "@types/jest": "24.0.5",
     "@types/lodash": "4.14.110",