[code-infra] Use the @mui/internal-markdown package

[michaldudak]

Used the @mui/internal-markdown package from npm instead of the monorepo.
Renamed all the references from @mui/markdown to @mui/internal-markdown.

Uses changes from mui/material-ui#41240.

This bumps the Core monorepo reference to the latest master. I also had to update the Core packages the make the build pass.

[mui-bot]

Deploy preview: https://deploy-preview-12188--material-ui-x.netlify.app/

Generated by 🚫 dangerJS against cd90dcf

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[michaldudak]

The failing builds seem not to be related to my changes. @mui/x, are they "expected" (based on other changes you've done since the last monorepo update)?

[alexfauquette]

The failing builds seem not to be related to my changes. @mui/x, are they "expected" (based on other changes you've done since the last monorepo update)?

@michaldudak It seems to be related to this modification in core.

https://github.com/mui/material-ui/pull/39137/files#r1501919356

I'm trying the fix here #12105

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[alexfauquette]

Done in #12105