libre: 0.5.7 -> 0.5.8

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

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

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 0.5.8 with grep in /nix/store/rqyqr2gb6pxqqah435xznnqwr9zi0xi2-libre-0.5.8
- directory tree listing: https://gist.github.com/a84247052706f314827aca34a1869d10

pkgs/development/libraries/libre/default.nix

···
 {stdenv, fetchurl, zlib, openssl}:
 stdenv.mkDerivation rec {
-  version = "0.5.7";
+  version = "0.5.8";
   name = "libre-${version}";
   src = fetchurl {
     url = "http://www.creytiv.com/pub/re-${version}.tar.gz";
-    sha256 = "0f8h224xfzvnb2ngvhxz8gzxqjlkkfr6d0nj8zqivzr81ihibk2x";
+    sha256 = "0w0f8j43j0nzgvkmv3ayzrssppgjmsh6z8mpa5iqsz8nv99dc3qr";
   };
   buildInputs = [ zlib openssl ];
   makeFlags = [ "USE_ZLIB=1" "USE_OPENSSL=1" "PREFIX=$(out)" ]