This update for postgresql17, postgresql18 fixes the following issues:

Changes in postgresql18:

- Fix build with uring for post SLE15 code streams.

Update to 18.1:

  * https://www.postgresql.org/about/news/p-3171/
  * https://www.postgresql.org/docs/release/18.1/
  * bsc#1253332, CVE-2025-12817: Missing check for CREATE
    privileges on the schema in CREATE STATISTICS allowed table
    owners to create statistics in any schema, potentially leading
    to unexpected naming conflicts.
  * bsc#1253333, CVE-2025-12818: Several places in libpq were not
    sufficiently careful about computing the required size of a
    memory allocation. Sufficiently large inputs could cause
    integer overflow, resulting in an undersized buffer, which
    would then lead to writing past the end of the buffer.

- pg_config --libs returns -lnuma so we need to require it.

Update to 18.0:

  * https://www.postgresql.org/about/news/p-3142/
  * https://www.postgresql.org/docs/18/release-18.html


Changes in postgresql17:

Update to 17.7:

  * https://www.postgresql.org/about/news/p-3171/
  * https://www.postgresql.org/docs/release/17.7/
  * bsc#1253332, CVE-2025-12817: Missing check for CREATE
    privileges on the schema in CREATE STATISTICS allowed table
    owners to create statistics in any schema, potentially leading
    to unexpected naming conflicts.
  * bsc#1253333, CVE-2025-12818: Several places in libpq were not
    sufficiently careful about computing the required size of a
    memory allocation. Sufficiently large inputs could cause
    integer overflow, resulting in an undersized buffer, which
    would then lead to writing past the end of the buffer.

- switch library to pg 18