fix: upgrade ava from 3.6.0 to 3.7.0

Snyk has created this PR to upgrade ava from 3.6.0 to 3.7.0.

See this package in NPM:
https://www.npmjs.com/package/ava

See this project in Snyk:
https://app.snyk.io/org/freaktechnik/project/9d7e55df-a6bc-453c-9e81-1c3dd78fd733?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

Diff for: package-lock.json

@@ -17,7 +17,7 @@
     "@freaktechnik/eslint-config-node": "^7.1.0",
     "@freaktechnik/eslint-config-test": "^7.1.0",
     "@typescript-eslint/parser": "^2.27.0",
-    "ava": "^3.6.0",
+    "ava": "^3.7.0",
     "codecov": "^3.6.5",
     "eclint": "^2.8.1",
     "eslint": "^6.8.0",