Bump playwright and @playwright/test

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 1.50.1 to 1.56.1
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.50.1...v1.56.1)

Updates `@playwright/test` from 1.50.1 to 1.56.1
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.50.1...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]

package-lock.json

@@ -19,7 +19,7 @@
     "@grafana/eslint-config": "^8.0.0",
     "@grafana/plugin-e2e": "^1.17.1",
     "@grafana/tsconfig": "^2.0.0",
-    "@playwright/test": "^1.41.2",
+    "@playwright/test": "^1.56.1",
     "@radix-ui/react-checkbox": "^1.1.3",
     "@radix-ui/react-collapsible": "^1.1.2",
     "@radix-ui/react-progress": "^1.1.1",