.sync/Version.njk: Update mu_devops to v13.0.3 (#419)

See the following comparison for details of the changes between these
releases:

v13.0.0...v13.0.3

Author: apop5

.sync/Version.njk

@@ -30,7 +30,7 @@
 #}
 
 {# The git ref value that files dependent on this repo will use. #}
-{% set mu_devops = "v13.0.0" %}
+{% set mu_devops = "v13.0.3" %}
 
 {# The latest Project Mu release branch value. #}
 {% set latest_mu_release_branch = "release/202405" %}