pgsql: Disable 031_recovery_conflict.pl until after minor releases.

Disable 031_recovery_conflict.pl until after minor releases.

f40d362a667 disabled part of 031_recovery_conflict.pl due to instability
that's not trivial to fix in the back branches. That fixed most of the
issues. But there was one more failure (on lapwing / REL_10_STABLE).

That failure looks like it might be caused by a genuine problem. Disable the
test until after the set of releases, to avoid packagers etc potentially
having to fight with a test failure they can't do anything about.

Discussion: https://postgr.es/m/3447060.1652032749@sss.pgh.pa.us
Backpatch: 10-14

Branch
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REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/6348e46850681daf1e648fd11cafabbe4aba8597

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