Update EE downgrade instructions to include JenkinsDeprecatedService
EE now includes JenkinsDeprecatedService in addition to JenkinsService, so we need to clean both when downgrading from EE to CE.
Closes #19133 (closed)
[ci skip]
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
EE now includes JenkinsDeprecatedService in addition to JenkinsService, so we need to clean both when downgrading from EE to CE.
Closes #19133 (closed)
[ci skip]