Merge pull request #384 from jsperf/greenkeeper-umzug-1.12.0

Update umzug to version 1.12.0 🚀

Author: asilluron

package.json

@@ -55,7 +55,7 @@
     "marked": "0.3.6",
     "mysql": "^2.12.0",
     "scooter": "4.0.0",
-    "umzug": "1.11.0",
+    "umzug": "1.12.0",
     "vision": "^4.1.1",
     "visionary": "^6.0.2",
     "yar": "^8.1.1"