redfishtool: refactor

this shouldn't create any rebuilds

pkgs/by-name/re/redfishtool/package.nix

@@ -4,16 +4,13 @@
   python3,
 }:
 
-let
+python3.pkgs.buildPythonApplication (finalAttrs: {
   pname = "redfishtool";
   version = "1.1.8";
-in
-python3.pkgs.buildPythonApplication {
-  inherit pname version;
   pyproject = true;
 
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-X/G6osOHCBidKZG/Y2nmHadifDacJhjBIc7WYrUCPn8=";
   };
 
@@ -29,9 +26,9 @@ python3.pkgs.buildPythonApplication {
   meta = {
     description = "Python34 program that implements a command line tool for accessing the Redfish API";
     homepage = "https://github.com/DMTF/Redfishtool";
-    changelog = "https://github.com/DMTF/Redfishtool/blob/${version}/CHANGELOG.md";
+    changelog = "https://github.com/DMTF/Redfishtool/blob/${finalAttrs.version}/CHANGELOG.md";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ jfvillablanca ];
     mainProgram = "redfishtool";
   };
-}
+})