Thread: pgsql: Harden new test case against force_parallel_mode = regress.

Harden new test case against force_parallel_mode = regress.

Per buildfarm: worker processes can't see a role created in
the current transaction.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/98a88bc2bcd60e41ca70e2f1e13eee827e23eefb

Modified Files
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src/test/regress/expected/psql.out | 3 ++-
src/test/regress/sql/psql.sql      | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)