Block Variation Picker doesn't support icons registered with the src attribute.

[gigitux]

Description

The component BlockVariationPicker doesn't support icons with the src attribute.

Step-by-step reproduction instructions

1. Create a Query Loop variation that has a declared icon with src (you can use this code).
2. Add the Query Loop block.
3. Click Start Blank.
4. The block crashes.

Screenshots, screen recording, code snippet

Screen.Capture.on.2022-12-07.at.17-50-53.mp4

Environment info

• WordPress 6.1
• Gutenberg trunk

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes