peewee 3.17.6 on Python PyPI

Fix bug in recursive model.delete_instance() when a table contains foreign-keys at multiple depths of the graph, #2893.
Fix regression in pool behavior on systems where time.time() returns identical values for two connections. This adds a no-op comparable sentinel to the heap to prevent any recurrence of this problem, #2901.
Ensure that subqueries inside CASE statements generate correct SQL.
Fix regression that broke server-side cursors with Postgres (introduced in 3.16.0).
Fix to ensure compatibility with psycopg3 - the libpq TransactionStatus constants are no longer available on the Connection instance.
Fix quoting issue in pwiz that could generate invalid python code for double-quoted string literals used as column defaults.