Bump @testing-library/react from 14.2.1 to 15.0.6

Bumps [@testing-library/react](https://github.com/testing-library/react-testing-library) from 14.2.1 to 15.0.6.
- [Release notes](https://github.com/testing-library/react-testing-library/releases)
- [Changelog](https://github.com/testing-library/react-testing-library/blob/main/CHANGELOG.md)
- [Commits](testing-library/react-testing-library@v14.2.1...v15.0.6)

---
updated-dependencies:
- dependency-name: "@testing-library/react"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -47,7 +47,7 @@
   "devDependencies": {
     "@babel/core": "7.24.0",
     "@babel/plugin-proposal-class-properties": "7.18.6",
-    "@testing-library/react": "14.2.1",
+    "@testing-library/react": "15.0.6",
     "@wordpress/babel-preset-default": "7.37.0",
     "@wordpress/block-editor": "12.21.0",
     "@wordpress/blocks": "12.30.0",