Bump @testing-library/react from 11.1.0 to 11.2.6 (#2416)

Bumps [@testing-library/react](https://github.com/testing-library/react-testing-library) from 11.1.0 to 11.2.6.
- [Release notes](https://github.com/testing-library/react-testing-library/releases)
- [Changelog](https://github.com/testing-library/react-testing-library/blob/master/CHANGELOG.md)
- [Commits](https://github.com/testing-library/react-testing-library/compare/v11.1.0...v11.2.6)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -254,7 +254,7 @@
     "@material-ui/lab": "^4.0.0-alpha.57",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.4.3",
     "@testing-library/jest-dom": "^5.11.5",
-    "@testing-library/react": "^11.1.0",
+    "@testing-library/react": "^11.2.6",
     "@types/byline": "^4.2.32",
     "@types/chart.js": "^2.9.21",
     "@types/circular-dependency-plugin": "^5.0.1",