User Investigation - Generic - added usage of XSIAM subplaybook to ge…

…t entity alerts by MITRE tactics (#30874)

* Added playbook, new pb readme and new pb image

* RN

* Bump pack from version CommonPlaybooks to 2.4.18.

* Bump pack from version CommonPlaybooks to 2.4.19.

* Bump pack from version CommonPlaybooks to 2.4.20.

* Bump pack from version CommonPlaybooks to 2.4.21.

* Update Packs/CommonPlaybooks/ReleaseNotes/2_4_21.md

Co-authored-by: ShirleyDenkberg <62508050+ShirleyDenkberg@users.noreply.github.com>

* Bump pack from version CommonPlaybooks to 2.4.22.

* Bump pack from version CommonPlaybooks to 2.4.23.

* Bump pack from version CommonPlaybooks to 2.4.24.

* Bump pack from version CommonPlaybooks to 2.4.25.

* Bump pack from version CommonPlaybooks to 2.4.26.

* Fixed issue in get entity alerts playbook and in firewall search. Updated RN.

* Fixed version

* Updated playbook with fixes from review

* Updated playbook with fixes from review

* Bump pack from version CommonPlaybooks to 2.4.27.

* Updated playbook with fixes from review

* Bump pack from version CommonPlaybooks to 2.4.28.

* Bump pack from version CommonPlaybooks to 2.4.29.

---------

Co-authored-by: Content Bot <bot@demisto.com>
Co-authored-by: ShirleyDenkberg <62508050+ShirleyDenkberg@users.noreply.github.com>