Update init.go

internal/providers/jwks/init.go

@@ -3,10 +3,18 @@ package jwks
 import "time"
 
 func InitJwksRefresh() {
+	// 先刷新一次
+	RefreshJWKS()
+	var firstRefreshed = true
+
 	// 启动一个定时器
 	go func() {
 		for {
-			RefreshJWKS()
+			if firstRefreshed {
+				firstRefreshed = false
+			} else {
+				RefreshJWKS()
+			}
 			time.Sleep(refreshRate)
 		}
 	}()