Add versioned docs for v2.1 (#1903) Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Add versioned docs for v2.1 (#1903) Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Add versioned docs for v2.1 (#1903) Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Add versioned docs for v2.1 (#1903) Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

docs(postgres cdc): pg_replication_temporary_slot is ignored; the slot is always durable spiceai/spiceai#12265 deprecates `pg_replication_temporary_slot`: a temporary slot belongs to the Postgres session that creates it, and Spice creates the slot on a short-lived setup connection, so Postgres dropped it before START_REPLICATION could attach — the stream could never start. vNext documents it as deprecated and ignored (setting it logs a deprecation warning). v2.0.x/v2.1.x still accept the parameter, so those snapshots warn that it is non-functional instead.