Add sish

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/default.nix

@@ -28,6 +28,7 @@
     inherit pkgs;
   };
   docker-redis = import ./docker/redis { inherit pkgs; };
+  docker-sish = import ./docker/sish { inherit pkgs; };
   docker-traefik = import ./docker/traefik { inherit pkgs; };
   docker-whoami = import ./docker/whoami { inherit pkgs; };
   docker-yq = import ./docker/yq { inherit pkgs; };