[Backport 5.4.0] release(upgradetest): confirm postrelease version is newer than the latest sourcegraph version #62651
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Last week, I ran into an obscure error where an internal release build had it's release tests failing.
Context
This led to an hypothesis where we believe the version I was trying to release
5.3.666
was assumed by the tests to be behind the latest version5.3.12303
. I added this check to ensure this doesn't repeat itself.Test plan
Will test during the release testing later.
Backport c1e29f0 from #62463