Update copyright for 2021
Backpatch-through: 9.5
Branch
------
REL_11_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/f6704ac83e49b94a66fd7393cb19915447a5ad24
Modified Files
--------------
COPYRIGHT | 2 +-
doc/src/sgml/legal.sgml | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)