gnu: python-biblib: Switch to pyproject.

* gnu/packages/python-xyz.scm (python-biblib):
[build-system]: Switch to pyproject-build-system.
[arguments]<#:tests?>: Disable them.
[native-inputs]: Add python-setuptools.

Change-Id: I3388d9ccdab2552c1c7124abb5c8b4ae548ba63a
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>

gnu/packages/python-xyz.scm

@@ -35594,7 +35594,9 @@ as the lua interface does.")
          (sha256
           (base32 "1ym1gwxys9gl5a7fjs6xh5z9w50pnq4z3rs6fx7kpv78hlrbjlip"))
          (file-name (git-file-name name version))))
-      (build-system python-build-system)
+      (build-system pyproject-build-system)
+      (arguments (list #:tests? #f))    ; No tests upstream.
+      (native-inputs (list python-setuptools))
       (home-page "https://github.com/aclements/biblib")
       (synopsis "BibTeX parsing and transformation library")
       (description