Bump eslint-plugin-react from 7.20.3 to 7.21.5

Bumps [eslint-plugin-react](https://github.com/yannickcr/eslint-plugin-react) from 7.20.3 to 7.21.5.
- [Release notes](https://github.com/yannickcr/eslint-plugin-react/releases)
- [Changelog](https://github.com/yannickcr/eslint-plugin-react/blob/master/CHANGELOG.md)
- [Commits](jsx-eslint/eslint-plugin-react@v7.20.3...v7.21.5)

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

package.json

@@ -58,7 +58,7 @@
     "eslint-config-airbnb": "^18.2.0",
     "eslint-plugin-import": "^2.22.0",
     "eslint-plugin-jsx-a11y": "^6.3.1",
-    "eslint-plugin-react": "^7.20.3",
+    "eslint-plugin-react": "^7.21.5",
     "mocha": "^8.0.1",
     "mongodb": "^3.5.5",
     "nyc": "^15.1.0"