Fixing string field typecasting warning

[ghost]

Warning message:

 TASK [Ubuntu1804-CIS : SCORED | 1.5.1 | PATCH | Ensure core dumps are restricted] **************************************************************************************
  [WARNING]: The value 0 (type int) in a string field was converted to '0' (type string). If this does not look like what you expect, quote the entire value to ensure
 it does not change.


 TASK [Ubuntu1804-CIS : SCORED | 1.5.3 | PATCH | Ensure address space layout randomization (ASLR) is enabled] ***********************************************************
  [WARNING]: The value 2 (type int) in a string field was converted to '2' (type string). If this does not look like what you expect, quote the entire value to ensure
 it does not change.


 TASK [Ubuntu1804-CIS : SCORED | 3.2.5 | PATCH | Ensure broadcast ICMP requests are ignored] ****************************************************************************
  [WARNING]: The value 1 (type int) in a string field was converted to '1' (type string). If this does not look like what you expect, quote the entire value to ensure
 it does not change.

Proposed solution:

YAML requires to enclose string values in quotes to avoid integer representation.