Log Message:
conftest: Update to 0.32.0

Changes:
0.32.0
======
New Features
------------
Support for limiting the test engine's capabilities - thank you
@boranx!

Bug Fixes
---------
conftest push no longer creates different OCI images when run against
the same policy set - thanks @macox!

Other improvements
------------------
OPA bump from v0.39.0 to v0.40.0.