Request support for running update tests on Dot release/Chemspill builds

[MarisBogdan]

This is a request to support running update tests on Dot releases/Chemspill builds across release channels (release-localtest, release-cdntest and release). Here is an example of an update test: 64.0.2 en-US - updates to 67.0.4 en-US on release-cdntest channel.