Integrate gutenberg-mobile release 1.56.0

[geriux]

Description

This PR incorporates the 1.56.0 release of gutenberg-mobile.
For more information about this release and testing instructions, please see the related Gutenberg-Mobile PR: wordpress-mobile/gutenberg-mobile#3664

Release Submission Checklist

• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

You can test the changes on this Pull Request by downloading the APK here.

[SiobhyB]

LGTM! 🎉 I tested on a Pixel 5 (Android 11) to verify that the editor doesn't crash. I covered the following in my testing:

• Edited an existing post and published a new one.
• Edited an existing page and published a new one.
• Inserted and modified some blocks at random.

I also verified that the following changes are in place and work as expected:

• Tweaks to the badge component's styling, including change of background color and reduced padding.
• Fixed an issue where pressing enter inside a text-based block was not creating a new block when using Gboard.
• New block: Layout grid.