deps: Udpate to github.com/alecthomas/chroma/v2

Fixes #9932
Fixes #9931

helpers/docshelper.go

@@ -1,11 +1,9 @@
 package helpers
 
 import (
-	"path/filepath"
 	"sort"
-	"strings"
 
-	"github.com/alecthomas/chroma/lexers"
+	"github.com/alecthomas/chroma/v2/lexers"
 	"github.com/gohugoio/hugo/docshelper"
 )
 
@@ -14,33 +12,18 @@ func init() {
 	docsProvider := func() docshelper.DocProvider {
 		var chromaLexers []any
 
-		sort.Sort(lexers.Registry.Lexers)
+		sort.Sort(lexers.GlobalLexerRegistry.Lexers)
 
-		for _, l := range lexers.Registry.Lexers {
+		for _, l := range lexers.GlobalLexerRegistry.Lexers {
 
 			config := l.Config()
 
-			var filenames []string
-			filenames = append(filenames, config.Filenames...)
-			filenames = append(filenames, config.AliasFilenames...)
-
-			aliases := config.Aliases
-
-			for _, filename := range filenames {
-				alias := strings.TrimSpace(strings.TrimPrefix(filepath.Ext(filename), "."))
-				if alias != "" {
-					aliases = append(aliases, alias)
-				}
-			}
-
-			aliases = UniqueStringsSorted(aliases)
-
 			lexerEntry := struct {
 				Name    string
 				Aliases []string
 			}{
 				config.Name,
-				aliases,
+				config.Aliases,
 			}
 
 			chromaLexers = append(chromaLexers, lexerEntry)