feat: update to go modules

vendor/github.com/alecthomas/chroma/styles/arduino.go

@@ -1,25 +0,0 @@
-package styles
-
-import (
-	"github.com/alecthomas/chroma"
-)
-
-// Arduino style.
-var Arduino = Register(chroma.MustNewStyle("arduino", chroma.StyleEntries{
-	chroma.Error:           "#a61717",
-	chroma.Comment:         "#95a5a6",
-	chroma.CommentPreproc:  "#728E00",
-	chroma.Keyword:         "#728E00",
-	chroma.KeywordConstant: "#00979D",
-	chroma.KeywordPseudo:   "#00979D",
-	chroma.KeywordReserved: "#00979D",
-	chroma.KeywordType:     "#00979D",
-	chroma.Operator:        "#728E00",
-	chroma.Name:            "#434f54",
-	chroma.NameBuiltin:     "#728E00",
-	chroma.NameFunction:    "#D35400",
-	chroma.NameOther:       "#728E00",
-	chroma.LiteralNumber:   "#8A7B52",
-	chroma.LiteralString:   "#7F8C8D",
-	chroma.Background:      " bg:#ffffff",
-}))