Description

I run into problem when I saving uploaded file to a folder and trying to get it from nginx it gives me permission error.
I found out that folders created by SaveUploadedFile function has 0750 rights, which I can't get access to.
After changing folder permissions problem is gone. Is there some way to specify the permissions for folders created besides manually creating it or chaning permissions by hand?

How to reproduce

package main

import (
	"github.com/gin-gonic/gin"
	"net/http"
)

func main() {
	g := gin.Default()
	g.POST("/upload", func(c *gin.Context) {
	        form, _ := c.MultipartForm()
                file := form.File["file"]

		c.SaveUploadedFile(file, "data/files/img.png")
                c.Status(http.StatusCreated)
	})
	g.Run(":9000")
}

Expectations

I excepted there is some method that allows to specify folder permissions I need (e.g. SaveUploadedFile(file *multipart.FileHeader, dst string, perm ...os.FileMode)).
You could specify permissions you need or leave it empty and get default (as it now) permissions.

Actual result

I got hard-written permissions made by source code:

if err = os.MkdirAll(filepath.Dir(dst), 0750); err != nil {
		return err
	}

Environment

• go version: 1.22
• gin version (or commit ref): v1.10.0
• operating system: linux/windows