chore(deps): update dependency @types/node to v12.7.7

Author: renovate-bot

package-lock.json

@@ -42,7 +42,7 @@
     "@semantic-release/npm": "5.1.15",
     "@types/chai": "4.2.3",
     "@types/mocha": "5.2.7",
-    "@types/node": "12.7.5",
+    "@types/node": "12.7.7",
     "chai": "4.2.0",
     "eslint": "6.4.0",
     "eslint-config-standard": "14.1.0",