oils-for-unix: 0.27.0 -> 0.28.0 (#390547)

Co-authored-by: Melkor333 <[e-mail]>

pkgs/by-name/oi/oils-for-unix/package.nix

···
 in
 stdenv.mkDerivation rec {
   pname = "oils-for-unix";
-  version = "0.27.0";
+  version = "0.28.0";
 
   src = fetchurl {
     url = "https://oils.pub/download/oils-for-unix-${version}.tar.gz";
-    hash = "sha256-q1ORYt/8FpT9WuicAOQFzF97c2YBWexbJpvt6mMd8X0=";
+    hash = "sha256-Jm0UsW2Q1KB/53SIHq+g7Nu8hBHPHHX4tuJWNwtmjjU=";
   };
 
   postPatch = ''