Apply suggestions from code review

Author: shashank-elastic

packages/security_detection_engine/changelog.yml

@@ -1,6 +1,6 @@
 # newer versions go on top
 # NOTE: please use pre-release versions (e.g. -beta.0) until a package is ready for production
-- version: 9.1.3-beta.1
+- version: 9.1.2-beta.2
  changes:
  - description: Release security rules update
  type: enhancement

packages/security_detection_engine/manifest.yml

@@ -21,4 +21,4 @@ source:
  license: Elastic-2.0
 title: Prebuilt Security Detection Rules
 type: integration
-version: 9.1.3-beta.1
+version: 9.1.2-beta.2