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1ca16aba5b7b869afa8e0a0cddaea539acd737f5 by bart.lee(이철민)/kakao <bart.lee@kakaocorp.com>:
chore: Improves session update time validation message
Enhances the error message when a session's last update time is later than the storage update time.
This provides better readability by formatting the timestamps in the error message.
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/adk-python/pull/446 from kakao-bart-lee:main a2a0cff036429b61bd7cf1600fc4c2c0cf50089d
PiperOrigin-RevId: 754452381
BREAKING CHANGE: `token` attribute of OAuth2Auth credentials used to be a dict containing both access_token and refresh_token, given that may cause confusions, now we replace it with access_token and refresh_token at top level of the auth credentials
PiperOrigin-RevId: 750346172
* Move unit tests to root package.
* Adds deps to "test" extra, and mark two broken tests in tests/unittests/auth/test_auth_handler.py
* Adds github workflow
* minor fix in lite_llm.py for python 3.9.
* format pyproject.toml