p2pool: 4.2 -> 4.3 (#372480)

pkgs/by-name/p2/p2pool/package.nix

···
 in
 stdenv.mkDerivation rec {
   pname = "p2pool";
-  version = "4.2";
+  version = "4.3";
 
   src = fetchFromGitHub {
     owner = "SChernykh";
     repo = "p2pool";
     rev = "v${version}";
-    hash = "sha256-zowRQeFrT0sY9L5XJQ10f8tRnEchjKVdBixtPbAQyvo=";
+    hash = "sha256-PHrmTkmpYOPKx9q+/mhjr8MIbFqmljKs2F26tqyCzcE=";
     fetchSubmodules = true;
   };