froide-govplan: inherit python from froide

pkgs/by-name/fr/froide-govplan/package.nix

@@ -12,12 +12,7 @@
   gettext,
 }:
 let
-  python = python3Packages.python.override {
-    packageOverrides = self: super: {
-      django_5 = super.django_5.override { withGdal = true; };
-      django = super.django_5;
-    };
-  };
+  inherit (froide) python;
 in
 python.pkgs.buildPythonApplication rec {
   pname = "froide-govplan";

pkgs/by-name/fr/froide/package.nix

@@ -191,6 +191,10 @@ python.pkgs.buildPythonApplication rec {
   # Playwright tests not supported on RiscV yet
   doCheck = lib.meta.availableOn stdenv.hostPlatform playwright-driver.browsers;
 
+  passthru = {
+    inherit python;
+  };
+
   meta = {
     description = "Freedom of Information Portal";
     homepage = "https://github.com/okfde/froide";