fix: value is same as message in setFieldError (#3203)

setError is setFieldError bound to specific field. Therefore the setError value should have same type as setFieldError message

Author: hixus

.changeset/stupid-boxes-tease.md

@@ -0,0 +1,5 @@
+---
+'formik': patch
+---
+
+Fixes type of setError value as it is same as setFieldError message

packages/formik/src/types.tsx

@@ -299,7 +299,7 @@ export interface FieldHelperProps<Value> {
   /** Set the field's touched value */
   setTouched: (value: boolean, shouldValidate?: boolean) => void;
   /** Set the field's error value */
-  setError: (value: Value) => void;
+  setError: (value: string | undefined) => void;
 }
 
 /** Field input value, name, and event handlers */