Update skins.js

schemas/minecraftservices/minecraft/profile/skins.js

@@ -9,14 +9,15 @@ module.exports = {
                 }),
             "authorization": z.string().min(1, { message: "Authorization header is required." })
         }),
-        body: z.object({
-            variant: z.enum(["classic", "slim"], { 
-                errorMap: () => ({ message: "Variant must be 'classic' or 'slim'." }) 
+        body: z.union([
+            z.object({
+                variant: z.enum(["classic", "slim"]),
+                url: z.string().url()
             }),
-            url: z.string().url().optional()
-        }).refine(data => {
-            return true; 
-        }),
+            z.object({
+                variant: z.enum(["classic", "slim"]).optional(),
+            }).passthrough() 
+        ]),
         error: {
             code: 400,
             message: "Invalid skin data, URL or variant.",