feat: update to go modules

vendor/github.com/alecthomas/chroma/lexers/s/systemd.go

@@ -1,28 +0,0 @@
-package s
-
-import (
-	. "github.com/alecthomas/chroma" // nolint
-	"github.com/alecthomas/chroma/lexers/internal"
-)
-
-var SYSTEMD = internal.Register(MustNewLexer(
-	&Config{
-		Name:      "SYSTEMD",
-		Aliases:   []string{"systemd"},
-		Filenames: []string{"*.service"},
-		MimeTypes: []string{"text/plain"},
-	},
-	Rules{
-		"root": {
-			{`\s+`, Text, nil},
-			{`[;#].*`, Comment, nil},
-			{`\[.*?\]$`, Keyword, nil},
-			{`(.*?)(=)(.*)(\\\n)`, ByGroups(NameAttribute, Operator, LiteralString, Text), Push("continuation")},
-			{`(.*?)(=)(.*)`, ByGroups(NameAttribute, Operator, LiteralString), nil},
-		},
-		"continuation": {
-			{`(.*?)(\\\n)`, ByGroups(LiteralString, Text), nil},
-			{`(.*)`, LiteralString, Pop(1)},
-		},
-	},
-))