Bump the tests-qunit group across 1 directory with 2 updates

Bumps the tests-qunit group with 2 updates in the / directory: [qunit](https://github.com/qunitjs/qunit) and [sinon](https://github.com/sinonjs/sinon).


Updates `qunit` from 2.24.2 to 2.25.0
- [Release notes](https://github.com/qunitjs/qunit/releases)
- [Changelog](https://github.com/qunitjs/qunit/blob/main/History.md)
- [Commits](qunitjs/qunit@2.24.2...2.25.0)

Updates `sinon` from 16.1.3 to 21.0.1
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/main/docs/changelog.md)
- [Commits](sinonjs/sinon@v16.1.3...v21.0.1)

---
updated-dependencies:
- dependency-name: qunit
  dependency-version: 2.25.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: tests-qunit
- dependency-name: sinon
  dependency-version: 21.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: tests-qunit
...

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

Author: dependabot[bot]

package-lock.json

@@ -67,10 +67,10 @@
 		"install-changed": "1.1.0",
 		"postcss": "8.5.6",
 		"prettier": "npm:wp-prettier@3.0.3",
-		"qunit": "~2.24.2",
+		"qunit": "~2.25.0",
 		"react-refresh": "0.14.0",
 		"sass": "1.94.0",
-		"sinon": "16.1.3",
+		"sinon": "21.0.3",
 		"sinon-test": "~3.1.6",
 		"source-map-loader": "5.0.0",
 		"terser-webpack-plugin": "5.3.14",