pypy: Use hash everywhere

Fixes the build after cpython switched to hash.

pkgs/development/interpreters/python/pypy/default.nix

@@ -12,7 +12,7 @@
 , pkgsTargetTarget
 , sourceVersion
 , pythonVersion
-, sha256
+, hash
 , passthruFun
 , pythonAttr ? "pypy${lib.substring 0 1 pythonVersion}${lib.substring 2 3 pythonVersion}"
 }:
@@ -46,7 +46,7 @@ in with passthru; stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://downloads.python.org/pypy/pypy${pythonVersion}-v${version}-src.tar.bz2";
-    inherit sha256;
+    inherit hash;
   };
 
   nativeBuildInputs = [ pkg-config ];

pkgs/development/interpreters/python/pypy/prebuilt.nix

@@ -19,7 +19,7 @@
 , packageOverrides ? (self: super: {})
 , sourceVersion
 , pythonVersion
-, sha256
+, hash
 , passthruFun
 }:
 
@@ -60,7 +60,7 @@ in with passthru; stdenv.mkDerivation {
 
   src = fetchurl {
     url = downloadUrls.${stdenv.system} or (throw "Unsupported system: ${stdenv.system}");
-    inherit sha256;
+    inherit hash;
   };
 
   buildInputs = [

pkgs/development/interpreters/python/pypy/prebuilt_2_7.nix

@@ -19,7 +19,7 @@
 , packageOverrides ? (self: super: {})
 , sourceVersion
 , pythonVersion
-, sha256
+, hash
 , passthruFun
 }:
 
@@ -60,7 +60,7 @@ in with passthru; stdenv.mkDerivation {
 
   src = fetchurl {
     url = downloadUrls.${stdenv.system} or (throw "Unsupported system: ${stdenv.system}");
-    inherit sha256;
+    inherit hash;
   };
 
   buildInputs = [