fix: firefox test integration environment

[WindRunnerMax]

Description
There's an issue with the current test:integration environment. The Firefox browser isn't working properly.

Example

https://github.com/ianstormtaylor/slate/actions/runs/11356967135/job/31589060385?pr=5737

After fixing this issue:

https://github.com/WindRunnerMax/slate/actions/runs/11358924149/job/31594223151

Checks

• The new code matches the existing patterns and styles.
• The tests pass with yarn test.
• The linter passes with yarn lint. (Fix errors with yarn fix.)
• The relevant examples still work. (Run examples with yarn start.)
• You've added a changeset if changing functionality. (Add one with yarn changeset add.)

[changeset-bot]

⚠️ No Changeset found

Latest commit: bf2fd1f

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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Click here to learn what changesets are, and how to add one.

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[WindRunnerMax]

I don't understand why my action runs fine, but it fails here. Maybe I should check it again.

https://github.com/WindRunnerMax/slate/actions/runs/11358924149/job/31594223151

https://github.com/ianstormtaylor/slate/actions/runs/11358984600/job/31594373409?pr=5742

[WindRunnerMax]

The root cause of the issue was a version mismatch between playwright and Ubuntu dependencies, but it's resolved now.

microsoft/playwright#30368

[dylans]

Thanks @WindRunnerMax!