ReStructuredText files have broken syntax highlight for code-blocks in rendered view

Summary

ReStructuredText files have broken syntax highlight for code-blocks in rendered view

Steps to reproduce

1. Create *.rst file with code-block and specify language.
2. Open it in and ensure to select "Display rendered file" option.

Example Project

Here is the project and reproducing file: link

What is the current bug behavior?

No syntax highlighting applied.

What is the expected correct behavior?

Syntax highlighting is applied.

Output of checks

This bug happens on GitLab.com