fix: hubspot deal closedate can be string

Author: zlalvani

src/platforms/hubspot/schemas.ts

@@ -204,7 +204,7 @@ export type HubspotContactUpdate = z.infer<
 const dealPropertiesSchema = z.object({
   amount: z.union([z.string(), z.number()]).nullable(),
   dealname: z.string().nullable(),
-  closedate: custom.date().nullable(),
+  closedate: custom.date().or(z.string()).nullable(),
   dealstage: z.string().nullable(),
   hs_deal_stage_probability: z.union([z.string(), z.number()]).nullable(),
   hs_projected_amount: z.union([z.string(), z.number()]).nullable(),