Add goctl version to code header (#4293)

tools/goctl/util/head.go

@@ -1,17 +1,21 @@
 package util
 
+import "github.com/zeromicro/go-zero/tools/goctl/internal/version"
+
 const (
 	// DoNotEditHead added to the beginning of a file to prompt the user not to edit
 	DoNotEditHead = "// Code generated by goctl. DO NOT EDIT."
 
 	headTemplate = DoNotEditHead + `
+// goctl {{.version}}
 // Source: {{.source}}`
 )
 
 // GetHead returns a code head string with source filename
 func GetHead(source string) string {
 	buffer, _ := With("head").Parse(headTemplate).Execute(map[string]any{
-		"source": source,
+		"source":  source,
+		"version": version.BuildVersion,
 	})
 	return buffer.String()
 }