chore(deps): bump pulldown-cmark from 0.11.0 to 0.12.0

Bumps [pulldown-cmark](https://github.com/raphlinus/pulldown-cmark) from 0.11.0 to 0.12.0.
- [Release notes](https://github.com/raphlinus/pulldown-cmark/releases)
- [Commits](pulldown-cmark/pulldown-cmark@v0.11.0...v0.12.0)

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

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

Cargo.toml

@@ -36,7 +36,7 @@ log = "0.4.21"
 mdbook = "0.4.40"
 once_cell = "1.19.0"
 path-slash = "0.2.1"
-pulldown-cmark = "0.11"
+pulldown-cmark = "0.12"
 regex = "1.10.5"
 semver = "1.0.23"
 serde = { version = "1.0.203", features = ["derive"] }