Adding PG versions 12.9, 13.5 and 14.1

[davissp14]

12.9 - https://www.postgresql.org/docs/12/release-12-9.html 13.5 - https://www.postgresql.org/docs/13/release-13-5.html 14.1 - https://www.postgresql.org/docs/14/release-14-1.html