Fix airgap agent install

Signed-off-by: Derek Nola <derek.nola@suse.com>

roles/k3s_agent/tasks/main.yml

@@ -26,13 +26,20 @@
         group: root
         mode: "0755"
 
-    - name: Download K3s and install binary
+    - name: Set skip_download var for install script
+      # noqa var-naming[no-role-prefix]
+      ansible.builtin.set_fact:
+        skip_download: "false"
+
+# We always run the install script, we just skip the download step as needed
+- name: Run K3s install script
   # noqa var-naming[no-role-prefix]
   ansible.builtin.command:
     cmd: /usr/local/bin/k3s-install.sh
   environment: "{{ _install_envs }}"
   vars:
     _base_envs:
+      INSTALL_K3S_SKIP_DOWNLOAD: "{{ skip_download | default('true') }}"
       INSTALL_K3S_SKIP_START: "true"
       INSTALL_K3S_SYSTEMD_DIR: "{{ systemd_dir }}"
       INSTALL_K3S_VERSION: "{{ k3s_version }}"