Обсуждение: pgsql: Update copyright for 2023

Update copyright for 2023

Backpatch-through: 11

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/1fbcb1360bc19b89369209203ea7cc19b8cde224

Modified Files
--------------
COPYRIGHT               | 2 +-
doc/src/sgml/legal.sgml | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)