Update index-templates.asciidoc (elastic#113461)

Adding `security_solution-*-*` in list of index nae to avoid the pattern collisions.

(cherry picked from commit 0638d39)

Author: smriti0321

docs/reference/indices/index-templates.asciidoc

@@ -44,6 +44,7 @@ following index patterns:
 - `metrics-*-*`
 - `synthetics-*-*`
 - `profiling-*`
+- `security_solution-*-*`
 // end::built-in-index-template-patterns[]
 
 {fleet-guide}/fleet-overview.html[{agent}] uses these templates to create