python3.pkgs.pg8000: add versioningit dependency

pkgs/development/python-modules/pg8000/default.nix

@@ -7,6 +7,7 @@
 , pythonOlder
 , scramp
 , setuptools
+, versioningit
 }:
 
 buildPythonPackage rec {
@@ -23,6 +24,7 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [
     setuptools
+    versioningit
   ];
 
   propagatedBuildInputs = [
@@ -33,10 +35,6 @@ buildPythonPackage rec {
     importlib-metadata
   ];
 
-  postPatch = ''
-    sed '/^\[metadata\]/a version = ${version}' setup.cfg
-  '';
-
   # Tests require a running PostgreSQL instance
   doCheck = false;