Bump merge-deep from 3.0.2 to 3.0.3

Bumps [merge-deep](https://github.com/jonschlinkert/merge-deep) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/jonschlinkert/merge-deep/releases)
- [Commits](jonschlinkert/merge-deep@3.0.2...3.0.3)

---
updated-dependencies:
- dependency-name: merge-deep
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -39,7 +39,7 @@
     "fs-extra": "8.1.0",
     "fusioncharts": "^3.15.0-sr.1",
     "lodash": "4.17.19",
-    "merge-deep": "^3.0.2",
+    "merge-deep": "^3.0.3",
     "moment": "^2.24.0",
     "next": "9.0.4",
     "node-sass": "4.12.0",