fix remaining packages to new format

- still needs testing

tasks/pkgs/zig.yml

@@ -1,11 +1,5 @@
 # vim: set filetype=yaml.ansible :
 ---
-- ansible.builtin.include_vars:
-    file: zig.yml
-    name: _zig
-- ansible.builtin.set_fact:
-    pkgconfig_zig: "{{ _zig | ansible.builtin.combine(pkgconfig.zig) }}"
-
-- name: append to pkgs
+- name: Append to pkgs
   ansible.builtin.set_fact:
-    srcpkgs: "{{ srcpkgs + [ 'zig' ] }}"
+    pkg_src: "{{ pkg_src + ['zig'] }}"