build: update dependency merge2 to v1.2.4

Author: renovate-bot

package.json

@@ -25,7 +25,7 @@
     "gulp-typescript": "5.0.1",
     "jest": "24.8.0",
     "lerna": "3.16.4",
-    "merge2": "1.2.3",
+    "merge2": "1.2.4",
     "prettier": "1.18.2",
     "react": "16.5.2",
     "react-test-renderer": "16.5.2",

yarn.lock

@@ -6501,15 +6501,20 @@ merge-stream@^1.0.1:
   dependencies:
     readable-stream "^2.0.1"
 
-merge2@1.2.3, merge2@^1.2.3:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.3.tgz#7ee99dbd69bb6481689253f018488a1b902b0ed5"
-  integrity sha512-gdUU1Fwj5ep4kplwcmftruWofEFt6lfpkkr3h860CXbAB9c3hGb55EOL2ali0Td5oebvW0E1+3Sr+Ur7XfKpRA==
+merge2@1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.4.tgz#c9269589e6885a60cf80605d9522d4b67ca646e3"
+  integrity sha512-FYE8xI+6pjFOhokZu0We3S5NKCirLbCzSh2Usf3qEyr4X8U+0jNg9P8RZ4qz+V2UoECLVwSyzU3LxXBaLGtD3A==
 
 merge2@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.1.tgz#271d2516ff52d4af7f7b710b8bf3e16e183fef66"
 
+merge2@^1.2.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.2.3.tgz#7ee99dbd69bb6481689253f018488a1b902b0ed5"
+  integrity sha512-gdUU1Fwj5ep4kplwcmftruWofEFt6lfpkkr3h860CXbAB9c3hGb55EOL2ali0Td5oebvW0E1+3Sr+Ur7XfKpRA==
+
 micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"