Only use stat get_checksum: yes when needed (#7270)

By default Ansible stat module compute checksum, list extended attributes and find mime type
To find all stat invocations that really use one of those:
git grep -F stat. | grep -vE 'stat.(islnk|exists|lnk_source|writeable)'

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>
(cherry picked from commit de1d9df787)

Conflicts:
	roles/etcd/tasks/check_certs.yml

roles/kubernetes/preinstall/tasks/0050-create_directories.yml

@@ -46,6 +46,9 @@
 - name: Check if kubernetes kubeadm compat cert dir exists
   stat:
     path: "{{ kube_cert_compat_dir }}"
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
   register: kube_cert_compat_dir_check
   when:
     - inventory_hostname in groups['k8s-cluster']