pgsql: Nail pg_parameter_acl in relcache.

Nail pg_parameter_acl in relcache.

Previously, a parameter specified in the startup packet for a physical
replication connection could encounter an error trying to perform an
ACL check for the setting.

Problem was introduced in a0ffa885e4, but no reasonable back-patchable
solution was found, so fixing only in master.

Bumps catversion.

Discussion: https://postgr.es/m/d8f8e11f06d692fff89e6be0f22732d30cf695a0.camel%40j-davis.com
Reviewed-by: John Naylor <johncnaylorls(at)gmail(dot)com>
Reviewed-by: Mark Dilger <mark(dot)dilger(at)enterprisedb(dot)com>

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/4cc02b80774ecdc4cf2a2d5df09c07df36d68ca5

Modified Files
--------------
src/backend/utils/cache/catcache.c | 2 ++
src/backend/utils/cache/relcache.c | 19 ++++++++++++++-----
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_parameter_acl.h | 2 +-
4 files changed, 18 insertions(+), 7 deletions(-)