Upgrade Hongdown to 0.3.0 for speedups

[ci skip]

Author: dahlia

.hongdown.toml

@@ -1,3 +1,4 @@
+no_inherit = true
 include = ["*.md", "**/*.md"]
 exclude = [
   "**/node_modules/**",

mise.toml

@@ -5,7 +5,7 @@ node = "22"
 pnpm = "10.28.0"
 
 [tools."github:dahlia/hongdown"]
-version = "0.2.6"
+version = "0.3.0"
 
 [tools."github:dahlia/hongdown".platforms]
 linux-x64 = "hongdown-*-x86_64-unknown-linux-musl.tar.bz2"