0.5.2

Trying a release with the bug fix, as a regular semver release (no alpha, no pre-release)

v0.5.1-alpha-3

In this one we remember to bump the version in version.py

v0.5.1-alpha-2

Try pointing to my own repo

v0.5.1-alpha

Identical to Google's v.0.5.0 of adk-python, except we try to gloss non-serializable objects in telemetry for LLM requests.