[DRE-maint] Bug#1072535: puma: FTBFS randomly: test failures

[Santiago Vila]

Hello.

I forwarded the ftbfs-on-single-cpu issue (which does
not really have an entry in our BTS yet) here:

https://github.com/puma/puma/issues/3659#issuecomment-2997335783

and they pointed me to this:

https://github.com/puma/puma/blob/3f90bc771c7623efc599151ff17e5a71954a5157/CONTRIBUTING.md#file-limits

Because this is a ruby package and the tests are executed at "make install" time,
I'm trying to increase the limit in this way:

override_dh_auto_install:
	ulimit -S -n 16384 && ulimit -S -n && dh_auto_install

but I don't see any improvement. Is that the right way to increase the limit?

Thanks.