treewide: name -> pname (easy cases) (#66585)

treewide replacement of

stdenv.mkDerivation rec {
  name = "*-${version}";
  version = "*";

to pname

pkgs/misc/emulators/blastem/default.nix

@@ -3,7 +3,7 @@
 let
   vasm =
     stdenv.mkDerivation rec {
-      name = "vasm-${version}";
+      pname = "vasm";
       version = "1.8c";
       src = fetchFromGitHub {
         owner = "mbitsnbites";
@@ -19,7 +19,7 @@ let
     };
 in
 stdenv.mkDerivation rec {
-  name = "blastem-${version}";
+  pname = "blastem";
   version = "0.5.1";
   src = fetchurl {
     url = "https://www.retrodev.com/repos/blastem/archive/3d48cb0c28be.tar.gz";