databases/postgresql??-*: Update to latest version

The issues listed below affect PostgreSQL 17. Some of these issues may
also affect other supported versions of PostgreSQL.

- Restore functionality of ALTER ROLE .. SET ROLE and ALTER DATABASE ..
  SET ROLE. The fix for CVE-2024-10978 accidentally caused settings for
  role to not be applied if they came from non-interactive sources,
  including previous ALTER {ROLE|DATABASE} commands and the PGOPTIONS
  environment variable.

- Restore compatibility for the timescaledb and other PostgreSQL
  extensions built using PostgreSQL prior to the 2024-11-14 release
  (17.0, 16.4, 15.8, 14.13, 13.16, 12.20, and earlier). This fix restores
  struct ResultRelInfo to its previous size, so that affected extensions
  don't need to be rebuilt.

- Fix cases where a logical replication slot's restart_lsn could go backwards.

- Avoid deleting still-needed WAL files during pg_rewind.

- Fix race conditions associated with dropping shared statistics
  entries, which could lead to loss of statistics data.

- Fix crash with ALTER TABLE when checking to see if an index's opclass
  options have changed if the table has an index with a non-default
  operator class.

Security:	12e3feab-a29f-11ef-af48-6cc21735f730

databases/postgresql14-server/Makefile

@@ -1,4 +1,4 @@
-DISTVERSION?=	14.14
+DISTVERSION?=	14.15
 # PORTREVISION must be ?= otherwise, all slave ports get this PORTREVISION and
 # not their own.  Probably best to keep it at ?=0 when reset here too.
 PORTREVISION?=	0

databases/postgresql14-server/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1731416577
-SHA256 (postgresql/postgresql-14.14.tar.bz2) = 84727fbccdbd1efe01d8de64bc1b33095db773ad2457cefcedc2d8258ebc09d6
-SIZE (postgresql/postgresql-14.14.tar.bz2) = 22451431
+TIMESTAMP = 1732004004
+SHA256 (postgresql/postgresql-14.15.tar.bz2) = 02e891e314b4e9ee24cbd78028dab7c73f9c1ba3e30835bcbef71fe220401fc5
+SIZE (postgresql/postgresql-14.15.tar.bz2) = 22458243