File pgvector.changes of Package failed_pgvector_postgresql13

Repair summary for failed_pgvector_postgresql13

Root cause:
- Build failed in %install because 'pg_config' was not found. make reported: "pg_config: No such file or directory". This indicates the PostgreSQL development package (providing pg_config) was not declared as a BuildRequires in the spec file.

Action taken (minimal change):
- Modified file: pgvector.spec (replaced whole file content)
  - Added BuildRequires: postgresql13-devel to ensure pg_config is available during build.
  - Added explanatory comment in %install about using PG_CONFIG from the PostgreSQL devel package.

Verification steps:
1) Trigger an OBS rebuild for the package on riscv64.
2) Confirm that during build, 'pg_config' exists in PATH (provided by postgresql13-devel) and that 'make PG_CONFIG=pg_config DESTDIR=%{buildroot} install' completes without error.

Files changed:
- temp_workspace/failed_pgvector_postgresql13/pgvector.spec
- temp_workspace/failed_pgvector_postgresql13/pgvector.changes

Notes:
- Could not create new directory auto_repair_results due to tool limitation; repair summary placed into pgvector.changes instead.
- The source tarball was not extracted; no repackaging necessary.

Repair performed by automated repair agent.