modules: services: woodpecker: default packages

Now that v1.0.0 is on nixpkgs, no need for my custom packages.

modules/services/woodpecker/agent-docker/default.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, ... }:
 let
   cfg = config.my.services.woodpecker;
 
@@ -10,8 +10,6 @@ in
       agents.docker = {
         enable = true;
 
-        package = pkgs.ambroisie.woodpecker-agent;
-
         environment = {
           WOODPECKER_SERVER = "localhost:${toString cfg.rpcPort}";
           WOODPECKER_MAX_WORKFLOWS = "10";