postgresql18-mini-18.1-160000.1.1

- Fix build on aarch64 with upstream commit 0dceba2:
  * llvm-21-aarch64.patch

- Fix build with uring for post SLE15 code streams.

- Use %product_libs_llvm_ver to determine the LLVM version.
- Remove conditionals for obsolete PostgreSQL releases.

- 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

- Update to 18 RC1.
  * https://www.postgresql.org/about/news/p-3130/

- move libpq-oauth into the libpq5  package. it is a plugin that
  will be loaded via dlopen() if libpq encounters an oauth workflow
  during a connection.

- In the symlinking loop for *.so files only handle symlinks and
  not also files.
  This allows us to enable oauth support

- enable liburing and libnuma support
- prepare oauth support. but it creates broken symlinks at the
  moment