Merge pull request #26 from topcoder-platform/dependabot/npm_and_yarn/sequelize-5.15.1

Bump sequelize from 4.32.2 to 5.15.1

Author: sachin-maheshwari

package-lock.json

@@ -37,7 +37,7 @@
     "no-kafka": "^3.2.10",
     "node-schedule": "^1.3.0",
     "pg": "^7.3.0",
-    "sequelize": "^4.21.0",
+    "sequelize": "^5.15.1",
     "superagent": "^3.8.0",
     "tc-core-library-js": "appirio-tech/tc-core-library-js.git#v2.4",
     "winston": "^2.4.0"