Forms: Update package with latest contact-form changes

[jcheringer]

Part of #28405

Proposed changes:

• Updates package with latest contact-form changes from trunk

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

pcsBup-N3-p2

Does this pull request change what data or activity we track or use?

No

Testing instructions:

Enable the Forms package on your jetpack install by making sure the filter below is added before the contact form module is loaded:

add_filter( 'jetpack_contact_form_use_package', '__return_true' );

Make sure the package is installed with jetpack install packages/forms && jetpack install plugins/jetpack, and build the JS bundle with jetpack build packages/forms.
You can also test the watch functionality with jetpack watch packages/forms.

Play with the Form block and check if it works as expected.
Make sure to test the latest style changes: #28212 - #27837

[github-actions]

Are you an Automattician? You can now test your Pull Request on WordPress.com. On your sandbox, run

bin/jetpack-downloader test jetpack update/forms-from-trunk

to get started. More details: p9dueE-5Nn-p2

[github-actions]

Thank you for your PR!

When contributing to Jetpack, we have a few suggestions that can help us test and review your patch:

• ✅ Include a description of your PR changes.
  
• ✅ All commits were linted before commit.
  
• ✅ Add a "[Status]" label (In Progress, Needs Team Review, ...).
  
• ✅ Add testing instructions.
  
• ✅ Specify whether this PR includes any changes to data or privacy.
  
• ✅ Add changelog entries to affected projects
  

This comment will be updated as you work on your PR and make changes. If you think that some of those checks are not needed for your PR, please explain why you think so. Thanks for cooperation 🤖

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The e2e test report can be found here. Please note that it can take a few minutes after the e2e tests checks are complete for the report to be available.

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Then, add the "[Status] Needs Team review" label and ask someone from your team review the code.
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[CGastrell]

Works well, and I see no problems on .com