Revision history for PostgreSQL extension tdigest.

1.4.4
    - Add missing parts of automated release workflow.
    - Make regression tests pass on Postgres 19 branch
    - Fix various issues when parsing/validating input data
    - Fix combinning t-digests with different parameters

1.4.3
    - PGXN packaging (META etc.).
    - Automating releases to GitHub / PGXN