gnu: Add python-pluggy-next.

* gnu/packages/python-build.scm (python-pluggy-next): New variable.

Change-Id: If3ec3f930a799df9602db71112a6c6a5272b524c

gnu/packages/python-build.scm

@@ -87,6 +87,18 @@ Pytest but stripped of Pytest specific details.")
    (home-page "https://pypi.org/project/pluggy/")
    (license license:expat)))
 
+(define-public python-pluggy-next
+  (package/inherit python-pluggy
+    (name "python-pluggy")
+    (version "1.5.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pluggy" version))
+       (sha256
+        (base32 "1w8c3mpliqm9biqw75ci8cfj1x5pb6g5zwblqp27ijgxjj7aizrc"))))
+    (build-system pyproject-build-system)))
+
 (define-public python-toml
   (package
     (name "python-toml")