chore(package): update @hapi/lab to version 22.0.4

Closes #10

Author: greenkeeper[bot]

package.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@hapi/code": "^5.3.1",
     "@hapi/hapi": "^18.3.1",
-    "@hapi/lab": "^18.1.2"
+    "@hapi/lab": "^22.0.4"
   },
   "scripts": {
     "test": "lab -a @hapi/code",