Switch to pybuild (Closes: #1090516).

debian/changelog

+python-json-patch (1.32-5) unstable; urgency=medium
+
+  * Switch to pybuild (Closes: #1090516).
+
+ -- Thomas Goirand <zigo@debian.org>  Thu, 19 Dec 2024 10:32:11 +0100
+
 python-json-patch (1.32-4) unstable; urgency=medium
 
   * Add Avoid_usage_of_unittest.makeSuite_removed_from_Python_3.13.patch

debian/rules

@@ -4,7 +4,7 @@ UPSTREAM_GIT := https://github.com/stefankoegl/python-json-patch.git
 include /usr/share/openstack-pkg-tools/pkgos.make
 
 %:
-	dh $@ --buildsystem=python_distutils --with python3
+	dh $@ --buildsystem=pybuild --with python3
 
 override_dh_auto_clean:
 	rm -rf *.egg-info build .stestr