Bump merge from 1.2.1 to 2.1.1

Bumps [merge](https://github.com/yeikos/js.merge) from 1.2.1 to 2.1.1.
- [Release notes](https://github.com/yeikos/js.merge/releases)
- [Commits](swordev/merge@v1.2.1...v2.1.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -57,7 +57,7 @@
     "documentation": "^11.0.0",
     "eslint": "^4.16.0",
     "jest": "^24.8.0",
-    "merge": "^1.2.1",
+    "merge": "^2.1.1",
     "watch": "^1.0.2"
   },
   "dependencies": {