Bump merge from 1.2.0 to 1.2.1

Bumps [merge](https://github.com/yeikos/js.merge) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/yeikos/js.merge/releases)
- [Commits](swordev/merge@v1.2.0...v1.2.1)

Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -961,7 +961,7 @@ babel-types@^6.24.1, babel-types@^6.26.0:
 
 babel@6.5.2:
   version "6.5.2"
-  resolved "http://registry.npmjs.org/babel/-/babel-6.5.2.tgz#59140607438270920047ff56f02b2d8630c2d129"
+  resolved "https://registry.npmjs.org/babel/-/babel-6.5.2.tgz#59140607438270920047ff56f02b2d8630c2d129"
 
 babylon@^6.11.0:
   version "6.13.0"
@@ -3568,8 +3568,8 @@ merge-stream@^1.0.1:
     readable-stream "^2.0.1"
 
 merge@^1.1.3:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
 
 micromatch@^2.1.5, micromatch@^2.3.11:
   version "2.3.11"