py-jsonref: add patches


(adam)

$NetBSD: patch-pyproject.toml,v 1.1 2024/01/22 13:34:43 adam Exp $

pdm-pep517 has been deprecated.

--- pyproject.toml.orig	2024-01-22 13:31:13.931157578 +0000
+++ pyproject.toml
@@ -37,6 +37,6 @@ profile = "black"
 
 [build-system]
 requires = [
-    "pdm-pep517>=1.0.0",
+    "pdm-backend",
 ]
-build-backend = "pdm.pep517.api"
+build-backend = "pdm.backend"