Only disable the PK cache, not the service

roles/el/tasks/packagekit.yml

@@ -13,13 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- name: Disable PackageKit
+- name: Disable PackageKit cache
   become: true
-  ansible.builtin.systemd:
-    name: packagekit.service
-    enabled: no
-    masked: yes
-    state: stopped
+  ansible.builtin.lineinfile:
+    path: /etc/PackageKit/PackageKit.conf
+    regexp: '^#?\w*KeepCache=(true|false)'
+    line: 'KeepCache=false'
 - name: Disable PackageKit offline updates
   become: true
   ansible.builtin.systemd: