Editor: Update packages for 6.7 RC 2

[kevin940726]

Syncs packages from Gutenberg ahead of RC 2. Contains the following PRs:

• Cherry Pick to 6.7: Preload: fix multiple regressions around global styles (#66468) gutenberg#66542
• Fix extraneous scrollbar in device previews gutenberg#66494
• Site Editor: Fix button hover style in sidebar navigation screen gutenberg#66505

Trac ticket: https://core.trac.wordpress.org/ticket/62309

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[aaronrobertshaw]

Thanks for keeping the package updates coming @kevin940726 👍

I've given this a smoke test using Playground. I didn't encounter any issues while poking around the site and post editors, frontend, or the logs.

The e2e failures look unrelated but I'm not super familiar with these ones.

✅ All package numbers are incremented
✅ No issues spotted in smoke test

Given we're in the RC phase and will need two approvals. I'm happy to give it one of those for now if it helps move things along.

[kevin940726]

Committed in r59318.