fix: upgrade @testing-library/jest-dom from 6.4.2 to 6.4.8

Snyk has created this PR to upgrade @testing-library/jest-dom from 6.4.2 to 6.4.8.

See this package in npm:
@testing-library/jest-dom

See this project in Snyk:
https://app.snyk.io/org/jafin/project/6e796766-c68c-48e5-b925-2acfd8dc0f6c?utm_source=github&utm_medium=referral&page=upgrade-pr

examples/oidc-client-demo/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "dependencies": {
     "@axa-fr/oidc-client": "workspace:~",
-    "@testing-library/jest-dom": "6.4.2",
+    "@testing-library/jest-dom": "6.4.8",
     "@testing-library/user-event": "14.5.2",
     "@types/jest": "29.5.12",
     "typescript": "5.4.2",