wasmtime: use python3

pkgs/development/interpreters/wasmtime/default.nix

@@ -1,4 +1,4 @@
-{ rustPlatform, fetchFromGitHub, lib, python2, cmake, llvmPackages, clang, stdenv, darwin }:
+{ rustPlatform, fetchFromGitHub, lib, python3, cmake, llvmPackages, clang, stdenv, darwin }:
 
 rustPlatform.buildRustPackage rec {
   pname = "wasmtime";
@@ -14,7 +14,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "1wlig9gls7s1k1swxwhl82vfga30bady8286livxc4y2zp0vb18w";
 
-  nativeBuildInputs = [ python2 cmake clang ];
+  nativeBuildInputs = [ python3 cmake clang ];
   buildInputs = [ llvmPackages.libclang ] ++
    lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Security ];
   LIBCLANG_PATH = "${llvmPackages.libclang.lib}/lib";