Update dependency husky to v6

Author: renovate-bot

package.json

@@ -21,7 +21,7 @@
     "@types/chai": "4.2.16",
     "@types/mocha": "8.2.2",
     "@types/node": "13.13.50",
-    "husky": "4.3.8",
+    "husky": "6.0.0",
     "lint-staged": "10.5.4",
     "prettier": "2.2.1",
     "tslint": "6.1.3",