chg: dev: Modify ops-checkmk-agent gate job
chg: dev: Modify ops-checkmk-agent gate job

* Modifying ops-checkmk-agent gate job to temporarily run on
  'vsi-test' slave for CIT stabilization effort

Change-Id: I2a05bfced47db1422b996e36d49cfd12a5e6f627
Signed-off-by: Vasanth Viswanathan <d48b3422a282630a64d8e0fb874e5cdb5871206c@hpe.com>

open-switch/infra_project-config,open-switch/infra_project-config