Quote pam_limits value to prevent type conversion warning

Signed-off-by: Norman Bestfleisch <[email protected]>

Author: Norman Bestfleisch

tasks/limits.yml

@@ -15,7 +15,7 @@
       domain: '*'
       limit_type: hard
       limit_item: core
-      value: 0
+      value: '0'
       comment: Prevent core dumps for all users. These are usually not needed and may contain sensitive information
 
   - name: set 10.hardcore.conf perms to 0400 and root ownership