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>

roles/kubernetes/preinstall/tasks/0080-system-configurations.yml

@@ -3,6 +3,9 @@
 - name: Confirm selinux deployed
   stat:
     path: /etc/selinux/config
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
   when:
     - ansible_os_family == "RedHat"
     - "'Amazon' not in ansible_distribution"
@@ -36,6 +39,9 @@
 - name: Stat sysctl file configuration
   stat:
     path: "{{ sysctl_file_path }}"
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
   register: sysctl_file_stat
   tags:
     - bootstrap-os