Bump merge-deep from 3.0.2 to 3.0.3 in /react-webapp

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: indirect
...

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

Author: dependabot[bot]

react-webapp/package-lock.json

@@ -7049,9 +7049,9 @@ memory-fs@^0.4.0, memory-fs@~0.4.1:
     readable-stream "^2.0.1"
 
 merge-deep@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/merge-deep/-/merge-deep-3.0.2.tgz#f39fa100a4f1bd34ff29f7d2bf4508fbb8d83ad2"
-  integrity sha512-T7qC8kg4Zoti1cFd8Cr0M+qaZfOwjlPDEdZIIPPB2JZctjaPM4fX+i7HOId69tAti2fvO6X5ldfYUONDODsrkA==
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/merge-deep/-/merge-deep-3.0.3.tgz#1a2b2ae926da8b2ae93a0ac15d90cd1922766003"
+  integrity sha512-qtmzAS6t6grwEkNrunqTBdn0qKwFgNWvlxUbAV8es9M7Ot1EbyApytCnvE0jALPa46ZpKDUo527kKiaWplmlFA==
   dependencies:
     arr-union "^3.1.0"
     clone-deep "^0.2.4"