Changelog 2023 03 03

Compute: Added support for the Postgres rum and pgTAP extensions. For more information about Postgres extensions supported by Neon, see Postgres extensions.
Pageserver: A system metric that monitors physical data size overflowed when a garbage collection operation was performed on an evicted data layer.
Pageserver: An index upload was skipped when a compaction operation did not perform an on-demand download from storage. With no on-demand downloads, the compaction function would exit before scheduling the index upload.