Embed module update breaks Element Embed

Problem/Motivation

Embed module version 8.x-1.8 introduced breaking changes for Drupal 11 compatibility. Element Embed is broken when used with the latest version of Embed. The class `EmbedCKEditorPluginBase` is not being found in Embed module.

[error] Error: Class "Drupal\embed\EmbedCKEditorPluginBase" not found in include() (line 18 of /var/www/html/web/modules/contrib/element_embed/src/Plugin/CKEditorPlugin/ElementEmbed.php) #0 /var/www/html/vendor/composer/ClassLoader.php(576)

Steps to reproduce

Update Embed to latest version. Install Element Embed and you get the error.

Proposed resolution

Maybe it is best for this module to constrain it's dependency to Embed version 8.x-1.7? Otherwise we need to discover if the EmbedCKEditorPluginBase class was moved to another namespace. And see if there are other breaking changes.