libwebsockets: 3.0.1 -> 3.1.0

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/libwebsockets/versions

pkgs/development/libraries/libwebsockets/default.nix

@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   name = "libwebsockets-${version}";
-  version = "3.0.1";
+  version = "3.1.0";
 
   src = fetchFromGitHub {
     owner = "warmcat";
     repo = "libwebsockets";
     rev = "v${version}";
-    sha256 = "1x3qrz2hqsrv2lg0y9irdx37c8r9j9vf9mwzgw61znzvk6hc9ymq";
+    sha256 = "1w1wz6snf3cmcpa3f4dci2nz9za2f5rrylxl109id7bcb36xhbdl";
   };
 
   buildInputs = [ cmake openssl zlib libuv ];