isync: 1.3.0 -> 1.3.1

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

pkgs/tools/networking/isync/default.nix

@@ -1,11 +1,11 @@
 { fetchurl, stdenv, openssl, pkgconfig, db, zlib, cyrus_sasl, perl }:
 
 stdenv.mkDerivation rec {
-  name = "isync-1.3.0";
+  name = "isync-1.3.1";
 
   src = fetchurl {
     url = "mirror://sourceforge/isync/${name}.tar.gz";
-    sha256 = "173wd7x8y5sp94slzwlnb7zhgs32r57zl9xspl2rf4g3fqwmhpwd";
+    sha256 = "1sphd30jplii58y2zmw365bckm6pszmapcy905zhjll1sm1ldjv8";
   };
 
   nativeBuildInputs = [ pkgconfig perl ];