Merge pull request #21678 from NejcZupec/fix-libmemcached

libmemcached: update sha256 hash

pkgs/development/libraries/libmemcached/default.nix

···
   patches = stdenv.lib.optional stdenv.isLinux ./libmemcached-fix-linking-with-libpthread.patch
     ++ stdenv.lib.optional stdenv.isDarwin (fetchpatch {
       url = "https://raw.githubusercontent.com/Homebrew/homebrew/bfd4a0a4626b61c2511fdf573bcbbc6bbe86340e/Library/Formula/libmemcached.rb";
-      sha256 = "1nvxwdkxj2a2g39z0g8byxjwnw4pa5xlvsmdk081q63vmfywh7zb";
+      sha256 = "1gjf3vd7hiyzxjvlg2zfc3y2j0lyr6nhbws4xb5dmin3csyp8qb8";
     });
 
   buildInputs = [ libevent ];