Bump @testing-library/dom

Bumps the testing-library group in /extensions/ql-vscode with 1 update: [@testing-library/dom](https://github.com/testing-library/dom-testing-library).


Updates `@testing-library/dom` from 10.2.0 to 10.3.0
- [Release notes](https://github.com/testing-library/dom-testing-library/releases)
- [Changelog](https://github.com/testing-library/dom-testing-library/blob/main/CHANGELOG.md)
- [Commits](testing-library/dom-testing-library@v10.2.0...v10.3.0)

---
updated-dependencies:
- dependency-name: "@testing-library/dom"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: testing-library
...

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

Author: dependabot[bot]

extensions/ql-vscode/package-lock.json

@@ -2025,7 +2025,7 @@
     "@storybook/react": "^8.1.11",
     "@storybook/react-vite": "^8.1.11",
     "@storybook/theming": "^8.1.11",
-    "@testing-library/dom": "^10.2.0",
+    "@testing-library/dom": "^10.3.0",
     "@testing-library/jest-dom": "^6.4.6",
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.5.2",