Upgrade sinon

Author: ThomWright

package-lock.json

@@ -54,12 +54,12 @@
     "@types/bluebird": "^3.5.30",
     "@types/node": "^10.17.18",
     "@types/pg": "^7.14.3",
-    "@types/sinon": "^7.5.2",
+    "@types/sinon": "^9.0.0",
     "ava": "^3.6.0",
     "fit-commit-js": "^0.3.2",
     "husky": "^3.1.0",
     "prettier": "^2.0.4",
-    "sinon": "^7.5.0",
+    "sinon": "^9.0.1",
     "ts-node": "^8.8.2",
     "tslint": "^6.1.1",
     "tslint-config-prettier": "^1.18.0",