chore(medusa): add metadata field to AdminCreateInvite (#13469)

Adds the possiblity to pass metadata fields when creating invites through API route

Co-authored-by: William Bouchard <46496014+willbouch@users.noreply.github.com>

.changeset/nine-meals-hope.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/medusa": patch
+---
+
+chore(medusa): add metadata field to AdminCreateInvite

packages/medusa/src/api/admin/invites/validators.ts

@@ -39,6 +39,7 @@ export type AdminCreateInviteType = z.infer<typeof AdminCreateInvite>
 export const AdminCreateInvite = z
   .object({
     email: z.string(),
+    metadata: z.record(z.unknown()).nullish(),
   })
   .strict()