Bump sinon from 7.3.1 to 7.3.2

Bumps [sinon](https://github.com/sinonjs/sinon) from 7.3.1 to 7.3.2.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](sinonjs/sinon@v7.3.1...v7.3.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -41,7 +41,7 @@
         "mocha": "^6.1.3",
         "nodemon": "^1.18.11",
         "nyc": "^14.0.0",
-        "sinon": "^7.3.1",
+        "sinon": "^7.3.2",
         "supertest": "^4.0.2",
         "ts-node": "^8.1.0",
         "tslint": "^5.16.0",