python3Packages.flask-reverse-proxy-file: use lib.licenses.ogluk30 (#540724)

lib/licenses/licenses.nix

@@ -1259,6 +1259,11 @@ lib.mapAttrs mkLicense (
       fullName = "SIL Open Font License 1.1";
     };
 
+    ogluk30 = {
+      spdxId = "OGL-UK-3.0";
+      fullName = "Open Government Licence v3.0";
+    };
+
     oml = {
       spdxId = "OML";
       fullName = "Open Market License";

pkgs/development/python-modules/flask-reverse-proxy-fix/default.nix

@@ -38,9 +38,6 @@ buildPythonPackage rec {
     maintainers = with lib.maintainers; [ matthiasbeyer ];
     homepage = "https://github.com/antarctica/flask-reverse-proxy-fix";
 
-    license = {
-      fullName = "Open Government Licence";
-      url = "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/";
-    };
+    license = lib.licenses.ogluk30;
   };
 }