Bump @testing-library/jest-dom to ^6.9.1 (#3002)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pnpm-lock.yaml

@@ -9,7 +9,7 @@
     "@mui/internal-test-utils": "^2.0.10",
     "@playwright/test": "1.56.0",
     "@testing-library/dom": "^10.4.1",
-    "@testing-library/jest-dom": "^6.6.4",
+    "@testing-library/jest-dom": "^6.9.1",
     "@types/chai": "^5.2.2",
     "@types/chai-dom": "^1.11.3",
     "@types/react": "^19.2.2",