Prep for 8.6 Branch Creation (#2308)

* adding prep for 8.6

* updated ecs and beats packages

* addressed flake errors

Removed changes from:
- detection_rules/etc/packages.yml

(selectively cherry picked from commit facaef1389)

.github/workflows/lock-versions.yml

@@ -6,7 +6,7 @@ on:
           description: 'List of branches to lock versions (ordered, comma separated)'
           required: true
           # 7.17 was intentionally skipped because it was added late and was bug fix only
-          default: '7.16,8.0,8.1,8.2,8.3,8.4'
+          default: '7.16,8.0,8.1,8.2,8.3,8.4,8.5'
 
 jobs:
   pr: