Bump myst-parser from 4.0.1 to 5.0.0 in /requirements (#24352)

Bumps [myst-parser](https://github.com/executablebooks/MyST-Parser) from 4.0.1 to 5.0.0.
- [Release notes](https://github.com/executablebooks/MyST-Parser/releases)
- [Changelog](https://github.com/executablebooks/MyST-Parser/blob/master/CHANGELOG.md)
- [Commits](executablebooks/MyST-Parser@v4.0.1...v5.0.0)

---
updated-dependencies:
- dependency-name: myst-parser
  dependency-version: 5.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/dev.txt

@@ -58,9 +58,9 @@ sphinx-rtd-theme==3.1.0 \
 snowballstemmer==3.0.1 \
     --hash=sha256:6cd7b3897da8d6c9ffb968a6781fa6532dce9c3618a4b127d920dab764a19064 \
     --hash=sha256:6d5eeeec8e9f84d4d56b847692bacf79bc2c8e90c7f80ca4444ff8b6f2e52895
-myst-parser==4.0.1 \
-    --hash=sha256:5cfea715e4f3574138aecbf7d54132296bfd72bb614d31168f48c477a830a7c4 \
-    --hash=sha256:9134e88959ec3b5780aedf8a99680ea242869d012e8821db3126d427edc9c95d
+myst-parser==5.0.0 \
+    --hash=sha256:ab31e516024918296e169139072b81592336f2fef55b8986aa31c9f04b5f7211 \
+    --hash=sha256:f6f231452c56e8baa662cc352c548158f6a16fcbd6e3800fc594978002b94f3a
 markdown-it-py==4.0.0 \
     --hash=sha256:87327c59b172c5011896038353a81343b6754500a08cd7a4973bb48c6d578147 \
     --hash=sha256:cb0a2b4aa34f932c007117b194e945bd74e0ec24133ceb5bac59009cda1cb9f3