fix date string zod validation (#355)

Co-authored-by: Yiming <yiming@whimslab.io>

Author: Xemah

packages/schema/src/plugins/zod/transformer.ts

@@ -114,7 +114,7 @@ export default class Transformer {
             } else if (inputType.type === 'Boolean') {
                 result.push(this.wrapWithZodValidators('z.boolean()', field, inputType));
             } else if (inputType.type === 'DateTime') {
-                result.push(this.wrapWithZodValidators('z.date()', field, inputType));
+                result.push(this.wrapWithZodValidators('z.union([z.date(), z.string().datetime()])', field, inputType));
             } else if (inputType.type === 'Json') {
                 this.hasJson = true;