Error after updating to CKEditor ^5.0.0

[d-karstens]

Describe the bug

Hi, after updating to version 5.0 of CKEditor we've started encountering the following error when trying to access an entry using it, or when trying to create a new CKEditor field

While Footnotes isn't explicitly mentioned in the stack trace the error stops happening when the plugin is disabled, also tested with a fresh Craft install with nothing but CKEditor and Footnotes installed

Let me know if you need any more info,
Thanks!

Steps to reproduce

1. Install Footnotes plugin with version ^5.0 of CKEditor
2. Try to create a new CKEditor field or view an entry with a CKEditor field on it

Craft CMS version

5.9.15

Plugin version

5.1.3

Multi-site?

No

Additional context

No response

[d-karstens]

Could be related to this change

[engram-design]

Fixed for the next release. To get this early, run composer require verbb/footnotes:"dev-craft-5 as 5.1.3".

[engram-design]

Updated in 5.2.0.