Fix link button on Rich Text

[etoledom]

Fixes #1875
gutenberg PR: WordPress/gutenberg#20172

This PR updates the gutenberg ref to bring a fix on isURL that will fix the mentioned issue on the LinksUI Modal.

Gif showing the issue:

To test:

To test:

1. Select some text on a Paragraph block (or any rich text powered block)
2. Tap on the links button on the block's the action bar.
3. Check that the Modal with the links options show as expected.

PR submission checklist:

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

[Tug]

LGTM 👍

[etoledom]

Thank you! 🙏