can not using tab in code block

[happyxhw]

Describe the bug
Can not using tab in code block

To Reproduce
create a code block in .md file, then tab to indent

Expected behavior
can using tab key in this text app

Screenshots

[happyxhw]

this is a feature or bug ?

[happyxhw]

read the code, I find: this is a issue of tiptap

ueberdosis/tiptap#1153