Update get-mongodb-version to latest

mongodb-js/get-mongodb-version@bbc46a6

Fixes mongodb-js/runner#144

Author: imlucas

package.json

@@ -29,7 +29,7 @@
     "download": "^6.2.5",
     "figures": "^2.0.0",
     "fs-extra": "^4.0.2",
-    "get-mongodb-version": "^1.0.0",
+    "get-mongodb-version": "^1.2.0",
     "lodash.defaults": "^4.2.0",
     "lodash.difference": "^4.1.1",
     "mongodb-download-url": "^0.4.2",