all: use %w instead of %v to wrap errors (#1275)

* all: use %w instead of %v for nested errors with fmt.Errorf

* all: update generated code to use %w instead of %v for error wrapping

examples/privacyadmin/ent/user_query.go

@@ -344,7 +344,7 @@ func (uq *UserQuery) sqlCount(ctx context.Context) (int, error) {
 func (uq *UserQuery) sqlExist(ctx context.Context) (bool, error) {
 	n, err := uq.sqlCount(ctx)
 	if err != nil {
-		return false, fmt.Errorf("ent: check existence: %v", err)
+		return false, fmt.Errorf("ent: check existence: %w", err)
 	}
 	return n > 0, nil
 }