Bump merge

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] <[email protected]>

Author: dependabot[bot]

ASP.NET Core with Angular/Web/AspNetCoreWithAngularTemplate.Web/package.json

@@ -39,7 +39,7 @@
     "html-minifier": "3.5.7",
     "gulp-useref": "3.1.3",
     "gulp-replace": "0.6.1",
-    "merge": "1.2.0",
+    "merge": "1.2.1",
     "systemjs-builder": "0.16.12",
     "tsconfig-glob": "0.4.3",
     "typescript": "2.6.1"