fix: fj-doc-playground-quarkus/src/main/react/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BRACES-6838727
- https://snyk.io/vuln/SNYK-JS-MICROMATCH-6838728

Author: snyk-bot

fj-doc-playground-quarkus/src/main/react/package.json

@@ -16,7 +16,7 @@
     "@emotion/styled": "^11.10.5",
     "@mui/icons-material": "^5.11.0",
     "@mui/material": "^5.11.2",
-    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/jest-dom": "^6.0.0",
     "@testing-library/react": "^13.4.0",
     "@testing-library/user-event": "^13.5.0",
     "@uiw/react-markdown-editor": "^5.13.0",