databases/libpg_query: mark as broken for i386

https://pkg-status.freebsd.org/beefy13/data/132i386-quarterly/ace2a29974a4/logs/libpg_query-15.4.2.3.log

test/normalize
..............INVALID result for "ALTER SUBSCRIPTION mysub SET PUBLICATION insert_only"
expected: ALTER SUBSCRIPTION mysub SET PUBLICATION insert_only
actual: ALTER SUBSCRIPTION$1 SET PUBLICATION insert_only
INVALID result for "ALTER SUBSCRIPTION mysub CONNECTION 'host=192.168.1.50 port=5432 user=foo dbname=foodb'"
expected: ALTER SUBSCRIPTION mysub CONNECTION $1
actual: ALTER SUBSCRIPTION$1 CONNECTION 'host=192.168.1.50 port=5432 user=foo dbname=foodb'
......
gmake[1]: *** [Makefile:252: test] Error 1
gmake[1]: Leaving directory '/wrkdirs/usr/ports/databases/libpg_query/work/libpg_query-15-4.2.3'

> Compilation failed unexpectedly.

Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.

• Error code 1

(cherry picked from commit 836eb91960e2c025728a9b950dd7e4ea972d6301)