chore(package): update aegir to version 22.0.0

Author: greenkeeper[bot]

package.json

@@ -44,7 +44,7 @@
     "strftime": "~0.10.0"
   },
   "devDependencies": {
-    "aegir": "^21.0.1",
+    "aegir": "^22.0.0",
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
     "dirty-chai": "^2.0.1"