build(deps): update comrak requirement from 0.18 to 0.20

Updates the requirements on [comrak](https://github.com/kivikakk/comrak) to permit the latest version.
- [Release notes](https://github.com/kivikakk/comrak/releases)
- [Changelog](https://github.com/kivikakk/comrak/blob/main/changelog.txt)
- [Commits](kivikakk/comrak@0.18.0...0.20.0)

---
updated-dependencies:
- dependency-name: comrak
  dependency-type: direct:production
...

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

askama/Cargo.toml

@@ -41,7 +41,7 @@ mime_guess = []
 [dependencies]
 askama_derive = { version = "0.12.0", path = "../askama_derive" }
 askama_escape = { version = "0.10.3", path = "../askama_escape" }
-comrak = { version = "0.18", optional = true, default-features = false }
+comrak = { version = "0.20", optional = true, default-features = false }
 dep_humansize = { package = "humansize", version = "2", optional = true }
 dep_num_traits = { package = "num-traits", version = "0.2.6", optional = true }
 percent-encoding = { version = "2.1.0", optional = true }

testing/Cargo.toml

@@ -14,7 +14,7 @@ markdown = ["comrak", "askama/markdown"]
 
 [dependencies]
 askama = { path = "../askama", version = "0.12" }
-comrak = { version = "0.18", default-features = false, optional = true }
+comrak = { version = "0.20", default-features = false, optional = true }
 serde_json = { version = "1.0", optional = true }
 
 [dev-dependencies]