feat(cli): read .env value to set or not the json output

cmd/goyco/main.go

@@ -67,7 +67,7 @@ func run(args []string) error {
 	rootFS.SetOutput(os.Stderr)
 	rootFS.Usage = printRootUsage
 	showHelp := rootFS.Bool("help", false, "show this help message")
-	jsonOutput := rootFS.Bool("json", false, "output results in JSON format")
+	jsonOutput := rootFS.Bool("json", cfg.CLI.JSONOutputDefault, "output results in JSON format")
 
 	if err := rootFS.Parse(args); err != nil {
 		if errors.Is(err, flag.ErrHelp) {