Update postgres (#20879)

Changes:

- docker-library/postgres@2c9ee26: Build `libpq` with `libcurl` to include `libpq-oauth` (docker-library/postgres#1402)

Co-authored-by: Docker Library Bot <doi+docker-library-bot@docker.com>

Author: tianon

library/postgres

@@ -16,12 +16,12 @@ Directory: 18/bookworm
 
 Tags: 18.2-alpine3.23, 18-alpine3.23, alpine3.23, 18.2-alpine, 18-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 12eb5762e3cf3c44440ed078b59843b5dfbde570
+GitCommit: 2c9ee2611e4988031a207ec97b69ab213b20b95c
 Directory: 18/alpine3.23
 
 Tags: 18.2-alpine3.22, 18-alpine3.22, alpine3.22
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, riscv64, s390x
-GitCommit: 12eb5762e3cf3c44440ed078b59843b5dfbde570
+GitCommit: 2c9ee2611e4988031a207ec97b69ab213b20b95c
 Directory: 18/alpine3.22
 
 Tags: 17.8, 17, 17.8-trixie, 17-trixie