Handle compatibility issues with embed 8.x-1.8

Just happened to us.

After updating embed and entity_embed to latest releases, got a WSOD at /admin/config/content/embed and text format config forms.

Class "Drupal\embed\EmbedCKEditorPluginBase" not found

I required 1.7 explicidly in my local composer. But than you have to be sure not to apply the patch in 🐛 Entity Embed fails to install after Embed module update Active because that will break the updb.

Hello @darkodev I uninstalled the old version of `ckeditor` which is obsolete and now it is ok. `drush pmu ckeditor -y`

@fuchoa I wish it were that easy. We are stuck on CK4 contrib until we can manage to convert all our custom plugins to CK5 and ensure no data loss.