Recent 027_streaming_regress.pl hangs

Hi,

Several animals are timing out while waiting for catchup,
sporadically.  I don't know why.  The oldest example I have found so
far by clicking around is:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=skink&dt=2024-02-23%2015%3A44%3A35

So perhaps something was committed ~3 weeks ago triggered this.

There are many examples since, showing as recoveryCheck failures.
Apparently they are all on animals wrangled by Andres.  Hmm.  I think
some/all share a physical host, they seem to have quite high run time
variance, and they're using meson.