MDX 3.1.0 introduce breaking change - no longer replace mdx components in React components declared in mdx files

[dimaMachina]

Initial checklist

• [X] I read the support docs
• [X] I read the contributing guide
• [X] I agree to follow the code of conduct
• [X] I searched issues and couldn’t find anything (or linked relevant results below)

Affected packages and versions

@mdx-js/mdx

Link to runnable example

No response

Steps to reproduce

See diff of snapshot

Expected behavior

as before or you should cut a new major release

https://github.com/user-attachments/assets/1228865a-2c36-40ba-9e53-40b7a087095c

Actual behavior

https://github.com/user-attachments/assets/43742758-ac9a-48c3-961a-f5e726f25af2

Affected runtime and version

node 20

Affected package manager and version

No response

Affected OS and version

No response

Build and bundle tools

No response