libuv: 1.20.3 -> 1.21.0

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/libuv/versions.

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 1.21.0 with grep in /nix/store/95msjm8zq3ahka1i7jcllk6kzqa2xxzp-libuv-1.21.0
- directory tree listing: https://gist.github.com/8a2b5bb197a6f9ec0f1e2ba156b359f7
- du listing: https://gist.github.com/ef01d39e12559715d3876f27594aa77f

pkgs/development/libraries/libuv/default.nix

@@ -2,14 +2,14 @@
 , ApplicationServices, CoreServices }:
 
 stdenv.mkDerivation rec {
-  version = "1.20.3";
+  version = "1.21.0";
   name = "libuv-${version}";
 
   src = fetchFromGitHub {
     owner = "libuv";
     repo = "libuv";
     rev = "v${version}";
-    sha256 = "1a8a679wni560z7x6w5i431vh2g0f34cznflcn52klx1vwcggrg7";
+    sha256 = "1jjg34ppnlrnb634q9mla7whl7rm9xmjgnzckrznqcycwzir074b";
   };
 
   postPatch = let