[Bug]: Syntax highlighter not working in 7.4

[ritz078]

Describe the bug

In version 7.3.2 syntax highlighter was working fine but it has stopped working correctly in v7.4.0

v7.3.2

v7.4.0

To Reproduce

Unfortunately I am not able to reproduce this on stackblitz. I am using pnpm in my project.

System

Environment Info:

  System:
    OS: macOS 13.4.1
    CPU: (10) arm64 Apple M1 Max
  Binaries:
    Node: 16.14.1 - ~/.asdf/installs/nodejs/16.14.1/bin/node
    Yarn: 1.22.17 - ~/.asdf/installs/nodejs/16.14.1/.npm/bin/yarn
    npm: 9.8.1 - ~/.asdf/plugins/nodejs/shims/npm
  Browsers:
    Chrome: 116.0.5845.179
    Edge: 113.0.1774.57
    Safari: 16.5.2
  npmPackages:
    @storybook/addon-a11y: ^7.4.0 => 7.4.0 
    @storybook/addon-actions: ^7.4.0 => 7.4.0 
    @storybook/addon-designs: ^7.0.5 => 7.0.5 
    @storybook/addon-docs: ^7.4.0 => 7.4.0 
    @storybook/addon-essentials: ^7.4.0 => 7.4.0 
    @storybook/addon-links: ^7.4.0 => 7.4.0 
    @storybook/addon-mdx-gfm: ^7.4.0 => 7.4.0 
    @storybook/blocks: ^7.4.0 => 7.4.0 
    @storybook/components: ^7.4.0 => 7.4.0 
    @storybook/manager-api: ^7.4.0 => 7.4.0 
    @storybook/react: ^7.4.0 => 7.4.0 
    @storybook/react-vite: ^7.4.0 => 7.4.0 
    @storybook/theming: ^7.4.0 => 7.4.0

Additional context

I am using mdx to write docs and I haven't changed anything else. Syntax highlighting works fine if I use autodocs tag.

[ritz078]

This is a duplicate of #24046