refactor ♻️: Refactor shell task in proxmox.yml to use 'cmd' keyword

Updated the shell task in proxmox.yml to utilize the 'cmd' keyword for better readability and consistency.

tasks/proxmox.yml

@@ -31,8 +31,8 @@
         remote_src: yes
 
     - name: Run uninstall script
-      ansible.builtin.shell: |
-        /usr/local/bin/pve-mod-gui-sensors.sh uninstall
+      ansible.builtin.shell:
+        cmd: /usr/local/bin/pve-mod-gui-sensors.sh uninstall
       ignore_errors: true
       when: pve_mod_gui_sensors_installed | default(false)