⬆ Bump playwright and @playwright/test in /frontend

Bumps [playwright](https://github.com/microsoft/playwright) to 1.56.1 and updates ancestor dependency [@playwright/test](https://github.com/microsoft/playwright). These dependencies need to be updated together.


Updates `playwright` from 1.55.0 to 1.56.1
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.55.0...v1.56.1)

Updates `@playwright/test` from 1.55.0 to 1.56.1
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.55.0...v1.56.1)

---
updated-dependencies:
- dependency-name: playwright
  dependency-version: 1.56.1
  dependency-type: indirect
- dependency-name: "@playwright/test"
  dependency-version: 1.56.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

frontend/package-lock.json

@@ -28,7 +28,7 @@
   "devDependencies": {
     "@biomejs/biome": "^2.2.4",
     "@hey-api/openapi-ts": "0.73.0",
-    "@playwright/test": "^1.55.0",
+    "@playwright/test": "^1.56.1",
     "@tanstack/router-devtools": "^1.131.42",
     "@tanstack/router-plugin": "^1.132.41",
     "@types/node": "^24.5.2",