chore(package): update serverless-domain-manager to version 2.6.12

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
     "request-promise-native": "^1.0.5",
     "rimraf": "^2.6.2",
     "serverless-aws-documentation": "^1.1.0",
-    "serverless-domain-manager": "^2.6.11",
+    "serverless-domain-manager": "^2.6.12",
     "serverless-offline": "^4.1.3",
     "serverless-plugin-typescript": "^1.1.5",
     "serverless-stack-output": "^0.2.3",