Update dependency @types/node to v12.12.59

Author: renovate-bot

package.json

@@ -29,7 +29,7 @@
     "@nestjs/testing": "7.3.2",
     "@types/express": "4.17.7",
     "@types/jest": "26.0.9",
-    "@types/node": "12.12.54",
+    "@types/node": "12.12.59",
     "@types/supertest": "2.0.10",
     "jest": "26.1.0",
     "reflect-metadata": "0.1.13",