Bump @playwright/test in the tests-playwright group

Bumps the tests-playwright group with 1 update: [@playwright/test](https://github.com/microsoft/playwright).


Updates `@playwright/test` from 1.50.1 to 1.55.1
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.50.1...v1.55.1)

---
updated-dependencies:
- dependency-name: "@playwright/test"
  dependency-version: 1.55.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: tests-playwright
...

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

Author: dependabot[bot]

package-lock.json

@@ -25,7 +25,7 @@
 	],
 	"devDependencies": {
 		"@lodder/grunt-postcss": "^3.1.1",
-		"@playwright/test": "1.50.1",
+		"@playwright/test": "1.55.1",
 		"@pmmmwh/react-refresh-webpack-plugin": "0.5.15",
 		"@wordpress/babel-preset-default": "8.19.1",
 		"@wordpress/dependency-extraction-webpack-plugin": "6.19.1",