Bumped version to 4.2.2-dev.

Change-Id: I6d22a737f425924d05bc5243fcc683a5f627e880
Reviewed-on: https://review.couchbase.org/c/couchnode/+/186924
Reviewed-by: Brett Lawson <brett19@gmail.com>
Tested-by: Jared Casey <jared.casey@couchbase.com>

Author: thejcfactor

package-lock.json

@@ -57,7 +57,7 @@
     "type": "git",
     "url": "http://github.com/couchbase/couchnode.git"
   },
-  "version": "4.2.1-dev",
+  "version": "4.2.2-dev",
   "config": {
     "native": false
   },