Add temporary override for rpds-py 0.17.1

While nix-community/poetry2nix#1502 is pending, add the override here.

shell.nix

@@ -37,6 +37,20 @@ let
         buildInputs = (old.buildInputs or []) ++ pkgs.python3.pkgs.pillow.buildInputs;
         preConfigure = (old.preConfigure or "") + pkgs.python3.pkgs.pillow.preConfigure;
       });
+      rpds-py = let
+        getCargoHash = version: {
+          "0.17.1" = "sha256-sFutrKLa2ISxtUN7hmw2P02nl4SM6Hn4yj1kkXrNWmI=";
+        }.${version} or (
+          lib.warn "Unknown rpds-py version: '${version}'. Please update getCargoHash." lib.fakeHash
+        );
+      in
+        super.rpds-py.overridePythonAttrs(old: {
+          cargoDeps = pkgs.rustPlatform.fetchCargoTarball {
+            inherit (old) src;
+            name = "${old.pname}-${old.version}";
+            hash = getCargoHash old.version;
+          };
+        });
       qmk = super.qmk.overridePythonAttrs(old: {
         # Allow QMK CLI to run "qmk" as a subprocess (the wrapper changes
         # $PATH and breaks these invocations).