Bump pulldown-cmark-to-cmark from 11.2.0 to 21.0.0

Bumps [pulldown-cmark-to-cmark](https://github.com/Byron/pulldown-cmark-to-cmark) from 11.2.0 to 21.0.0.
- [Release notes](https://github.com/Byron/pulldown-cmark-to-cmark/releases)
- [Changelog](https://github.com/Byron/pulldown-cmark-to-cmark/blob/main/CHANGELOG.md)
- [Commits](Byron/pulldown-cmark-to-cmark@v11.2.0...v21.0.0)

---
updated-dependencies:
- dependency-name: pulldown-cmark-to-cmark
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -34,7 +34,7 @@ oauth2 = "4.4.2"
 open = "5.3.2"
 parse-display = "0.10.0"
 pulldown-cmark = "0.9.2"
-pulldown-cmark-to-cmark = "11.0.2"
+pulldown-cmark-to-cmark = "21.0.0"
 regex = "1"
 reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
 ring = "0.17.8"