fix(deps): update module github.com/johanneskaufmann/html-to-markdown to v2 (#27)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -6,7 +6,7 @@ toolchain go1.24.5
 
 require (
 	github.com/JohannesKaufmann/html-to-markdown v1.6.0
-	github.com/JohannesKaufmann/html-to-markdown/v2 v2.3.3
+	github.com/JohannesKaufmann/html-to-markdown/v2 v2.4.0
 	github.com/go-shiori/go-readability v0.0.0-20250217085726-9f5bf5ca7612
 	github.com/modelcontextprotocol/go-sdk v0.2.0
 	golang.org/x/net v0.43.0

go.sum

@@ -1,6 +1,7 @@
 github.com/JohannesKaufmann/html-to-markdown v1.6.0 h1:04VXMiE50YYfCfLboJCLcgqF5x+rHJnb1ssNmqpLH/k=
 github.com/JohannesKaufmann/html-to-markdown v1.6.0/go.mod h1:NUI78lGg/a7vpEJTz/0uOcYMaibytE4BUOQS8k78yPQ=
 github.com/JohannesKaufmann/html-to-markdown/v2 v2.3.3/go.mod h1:HtsP+1Fchp4dVvaiIsLHAl/yqL3H1YLwqLC9kNwqQEg=
+github.com/JohannesKaufmann/html-to-markdown/v2 v2.4.0/go.mod h1:OLaKh+giepO8j7teevrNwiy/fwf8LXgoc9g7rwaE1jk=
 github.com/PuerkitoBio/goquery v1.9.2 h1:4/wZksC3KgkQw7SQgkKotmKljk0M6V8TUvA8Wb4yPeE=
 github.com/PuerkitoBio/goquery v1.9.2/go.mod h1:GHPCaP0ODyyxqcNoFGYlAprUFH81NuRPd0GX3Zu2Mvk=
 github.com/andybalholm/cascadia v1.2.0/go.mod h1:YCyR8vOZT9aZ1CHEd8ap0gMVm2aFgxBp0T0eFw1RUQY=