refactor: fix go vet errors related to composite literals (#39341)

Fix these `go vet` errors which I stumbled upon because AI likes to run
`go vet` standalone and `go vet` does not understand `//nolint` like
golangci does, so it produced confusing output.

Co-authored-by: bircni <bircni@icloud.com>

modules/validation/binding.go

@@ -45,7 +45,7 @@ func (j jsonProvider) NewEncoder(writer io.Writer) binding.JSONEncoder {
 }
 
 func newFieldError(field reflect.StructField, cls, msg string) *BindingError {
-	return &BindingError{[]string{field.Name}, cls, msg} //nolint:govet // make sure no missing fields
+	return &BindingError{FieldNames: []string{field.Name}, Classification: cls, Message: msg}
 }
 
 func AddValidationError(errs BindingErrors, fieldName, errorMsg string) BindingErrors {
@@ -159,5 +159,5 @@ var Binder = sync.OnceValue(func() *binding.Binder {
 
 type (
 	BindingErrors = binding.Errors
-	BindingError  = binding.Error
+	BindingError  = binding.Error //exhaustruct:enforce
 )