redis: 4.0.8 -> 4.0.9

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

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

These checks were done:

- built on NixOS
- ran `/nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9/bin/redis-server -v` and found version 4.0.9
- ran `/nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9/bin/redis-server --version` and found version 4.0.9
- ran `/nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9/bin/redis-benchmark --help` got 0 exit code
- ran `/nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9/bin/redis-cli -v` and found version 4.0.9
- ran `/nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9/bin/redis-cli --version` and found version 4.0.9
- found 4.0.9 with grep in /nix/store/li8wiv90v6f9gbsfsg6m9kppyvccmsgg-redis-4.0.9
- directory tree listing: https://gist.github.com/aa9a9c80a05ebbc58dac3d99c31f5258

pkgs/servers/nosql/redis/default.nix

@@ -1,12 +1,12 @@
 { stdenv, fetchurl, lua }:
 
 stdenv.mkDerivation rec {
-  version = "4.0.8";
+  version = "4.0.9";
   name = "redis-${version}";
 
   src = fetchurl {
     url = "http://download.redis.io/releases/${name}.tar.gz";
-    sha256 = "1b9jqacckx4qqyz905mnclxfcpsvrwc507n6zr4r4canq6w3h37z";
+    sha256 = "0465bv6yxnwmas3wzg07vmrprv2pxhnr56hn5pxrybwf66y76kyz";
   };
 
   buildInputs = [ lua ];