Bump buffer from 5.7.0 to 6.0.3

Bumps [buffer](https://github.com/feross/buffer) from 5.7.0 to 6.0.3.
- [Release notes](https://github.com/feross/buffer/releases)
- [Commits](feross/buffer@v5.7.0...v6.0.3)

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

package.json

@@ -19,7 +19,7 @@
     "babel-eslint": "^10.1.0",
     "babel-jest": "^26.6.1",
     "babel-loader": "^8.1.0",
-    "buffer": "^5.7.0",
+    "buffer": "^6.0.3",
     "crypto-browserify": "^3.12.0",
     "eslint": "^7.12.1",
     "eslint-config-prettier": "^6.15.0",