2.33.1

Various fixes & improvements

• fix(integrations): allow explicit op parameter in ai_track (#4597) by @mshavliuk
• fix: Fix abs_path bug in serialize_frame (#4599) by @szokeasaurusrex
• Remove pyrsistent from test dependencies (#4588) by @musicinmybrain
• Remove explicit __del__'s in threaded classes (#4590) by @sl0thentr0py
• Remove forked from test_transport, separate gevent tests and generalize capturing_server to be module level (#4577) by @sl0thentr0py
• Improve token usage recording (#4566) by @antonpirker