Version.njk update mu_devops from v18.0.0 to v18.0.2 (#511)

https://github.com/microsoft/mu_devops/releases/tag/v18.0.2

Author: apop5

.sync/Version.njk

@@ -30,7 +30,7 @@
 #}
 
 {# The git ref value that files dependent on this repo will use. #}
-{% set mu_devops = "v18.0.0" %}
+{% set mu_devops = "v18.0.2" %}
 
 {# The latest Project Mu release branch value. #}
 {% set latest_mu_release_branch = "release/202502" %}