Bump rlp from 2.2.3 to 2.2.4

Bumps [rlp](https://github.com/ethereumjs/rlp) from 2.2.3 to 2.2.4.
- [Release notes](https://github.com/ethereumjs/rlp/releases)
- [Changelog](https://github.com/ethereumjs/rlp/blob/master/CHANGELOG.md)
- [Commits](ethereumjs/rlp@v2.2.3...v2.2.4)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -74,7 +74,7 @@
     "react-hot-loader": "4.12.15",
     "react-inspector": "paritytech/react-inspector",
     "react-markdown": "4.2.2",
-    "rlp": "2.2.3",
+    "rlp": "2.2.4",
     "style-loader": "^0.23.1",
     "stylelint": "^8.2.0",
     "stylelint-config-standard": "^17.0.0",

yarn.lock

@@ -7765,12 +7765,11 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^2.0.0"
     inherits "^2.0.1"
 
-[email protected].3, rlp@^2.0.0:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.3.tgz#7f94aef86cec412df87d5ea1d8cb116a47d45f0e"
+[email protected].4, rlp@^2.0.0:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.4.tgz#d6b0e1659e9285fc509a5d169a9bd06f704951c1"
   dependencies:
     bn.js "^4.11.1"
-    safe-buffer "^5.1.1"
 
 run-async@^2.2.0:
   version "2.3.0"
@@ -7784,15 +7783,11 @@ rxjs@^6.4.0:
   dependencies:
     tslib "^1.9.0"
 
-[email protected]:
+[email protected], safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
-
-safe-buffer@^5.1.2:
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"