fix(package): update @nestjs/typeorm to version 6.3.3

Closes #19

Author: greenkeeper[bot]

package.json

@@ -45,7 +45,7 @@
     "@nestjs/microservices": "^4.5.8",
     "@nestjs/swagger": "^1.1.3",
     "@nestjs/testing": "^4.5.5",
-    "@nestjs/typeorm": "^2.0.0",
+    "@nestjs/typeorm": "^6.3.3",
     "@nestjs/websockets": "^4.5.8",
     "@types/dotenv": "^4.0.2",
     "@types/jsonwebtoken": "^7.2.5",