migrate go version to 1.17 (#203)

* migrate go version to 1.17

* update contributing

vendor/github.com/goccy/go-json/internal/encoder/option.go

@@ -0,0 +1,41 @@
+package encoder
+
+import "context"
+
+type OptionFlag uint8
+
+const (
+	HTMLEscapeOption OptionFlag = 1 << iota
+	IndentOption
+	UnorderedMapOption
+	DebugOption
+	ColorizeOption
+	ContextOption
+)
+
+type Option struct {
+	Flag        OptionFlag
+	ColorScheme *ColorScheme
+	Context     context.Context
+}
+
+type EncodeFormat struct {
+	Header string
+	Footer string
+}
+
+type EncodeFormatScheme struct {
+	Int       EncodeFormat
+	Uint      EncodeFormat
+	Float     EncodeFormat
+	Bool      EncodeFormat
+	String    EncodeFormat
+	Binary    EncodeFormat
+	ObjectKey EncodeFormat
+	Null      EncodeFormat
+}
+
+type (
+	ColorScheme = EncodeFormatScheme
+	ColorFormat = EncodeFormat
+)