updated tasks so they are only run once

tasks/pkgs/starship.yml

@@ -1,8 +1,16 @@
 # vim: set filetype=yaml.ansible :
 ---
-- name: Add to pkg_cargo
-  notify:
-    - Depend cargo
-  changed_when: true
-  ansible.builtin.set_fact:
-    pkg_cargo: "{{ pkg_cargo + ['starship'] }}"
+- name: Add starship
+  when:
+    - starship_configured is undefined
+  block:
+    - name: Add to pkg_cargo
+      notify:
+        - Depend cargo
+      changed_when: true
+      ansible.builtin.set_fact:
+        pkg_cargo: "{{ pkg_cargo + ['starship'] }}"
+
+    - name: Set starship_configured
+      ansible.builtin.set_fact:
+        starship_configured: true