fix: upgrade typeorm from 0.2.30 to 0.3.19

Snyk has created this PR to upgrade typeorm from 0.2.30 to 0.3.19.

See this package in npm:


See this project in Snyk:
https://app.snyk.io/org/otasoft/project/8c113353-4d35-446a-a680-b6f14b43919e?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -39,7 +39,7 @@
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
     "rxjs": "^6.5.4",
-    "typeorm": "^0.2.30"
+    "typeorm": "^0.3.19"
   },
   "devDependencies": {
     "@nestjs/cli": "^7.0.0",