nix/home/zsh: source pinned channel sources

nix/home-manager/programs/zsh.nix

@@ -4,6 +4,9 @@
 }:
 
 let
+  channelSources = (import ../../default.nix {
+      versionsPath = ../../variables/versions.nix;
+    }).channelSources;
 in {
   programs.zsh = {
     enable = true;
@@ -34,6 +37,8 @@ in {
 
       # don't cd into directories when executed
       unsetopt AUTO_CD
+
+      source ${channelSources}
     '';
 
     sessionVariables = {