Обсуждение: pgsql: Fix timing issue in deadlock recovery conflict test.

Fix timing issue in deadlock recovery conflict test.

Per buildfarm members longfin and skink.

Discussion: https://postgr.es/m/20220413002626.udl7lll7f3o7nre7@alap3.anarazel.de
Backpatch: 10-

Branch
------
REL_10_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/3197e0f5ae9d58a0dd45e1bf8646ce83791bb2de

Modified Files
--------------
src/test/recovery/t/031_recovery_conflict.pl | 11 +++++++++++
1 file changed, 11 insertions(+)