fix pipx

Signed-off-by: Matthew Stobbs <matthew.stobbs@ucalgary.ca>

tasks/pkgs/pipx.yml

@@ -1,13 +1,5 @@
 # vim: set filetype=yaml.ansible :
 ---
-- name: Add pipx
-  when:
-    - pipx_configured is undefined
-  block:
-    - name: Append pipx to pkg_sys
+- name: Append pipx to pkg_sys
   ansible.builtin.set_fact:
     pkg_sys: "{{ pkg_sys + ['pipx'] }}"
-
-    - name: Set pipx_configured
-      ansible.builtin.set_fact:
-        pipx_configured: true