akkuPackages.*: add an 'akku-' prefix to the package names (#346987)

pkgs/tools/package-management/akku/default.nix

···
-{ lib, newScope, stdenv, fetchurl }:
+{ lib, newScope, fetchurl }:
 lib.makeScope newScope (self: rec {
-
-  fetchAkku = { name, url, sha256, ... }:
-    fetchurl {
-      inherit url sha256;
-    };
-
   akkuDerivation = self.callPackage ./akkuDerivation.nix { };
   akku = self.callPackage ./akku.nix { };
 
···
       overrides = self.callPackage ./overrides.nix { };
       makeAkkuPackage = akkuself: pname:
         { version, dependencies, dev-dependencies, license, url, sha256, source, synopsis ? "", homepage ? "", ... }:
-        (akkuDerivation rec {
-          inherit version pname;
-          src = fetchAkku {
+        (akkuDerivation {
+          pname = "akku-${pname}";
+          inherit version;
+          src = fetchurl {
             inherit url sha256;
-            name = pname;
           };
           buildInputs = builtins.map (x: akkuself.${x}) dependencies;
           r7rs = source == "snow-fort";