chore(deps): update dependency husky to v4

Author: renovate-bot

package.json

@@ -119,7 +119,7 @@
     "@types/node": "10.12.18",
     "@types/sinon": "7.0.13",
     "expect": "^24.1.0",
-    "husky": "^1.3.1",
+    "husky": "^4.2.5",
     "lnfs-cli": "^2.1.0",
     "lodash": "^4.17.11",
     "mkdirp": "^0.5.1",