chore: Remove API key usage in CI #54

Job	Run time
build (3.10, windows-latest, 0)	8m 55s
build (3.10, ubuntu-latest, 1)	6m 2s
build (3.11, ubuntu-latest, 1)	5m 45s
build (3.11, ubuntu-latest, 0)	5m 19s
build (3.10, windows-latest, 1)	10m 34s
build (3.11, windows-latest, 1)	10m 58s
build (3.13, ubuntu-latest, 0)	5m 43s
build (3.13, windows-latest, 1)	10m 5s
build (3.13, windows-latest, 0)	10m 9s
build (3.11, windows-latest, 0)	10m 3s
adk-py (3.10, ubuntu-latest) / test	11s
build (3.12, windows-latest, 1)	11m 9s
build (3.12, windows-latest, 0)	9m 44s
adk-py (3.11, ubuntu-latest) / test	15s
adk-py (3.10, windows-latest) / test	43s
build (3.10, ubuntu-latest, 0)	5m 50s
adk-py (3.12, ubuntu-latest) / test	13s
adk-py (3.11, windows-latest) / test	1m 12s
langchain-py (3.12, windows-latest) / test	48s
langchain-py (3.13, ubuntu-latest) / test	18s
build (3.12, ubuntu-latest, 0)	5m 51s
langchain-py (3.11, windows-latest) / test	52s
build (3.13, ubuntu-latest, 1)	6m 2s
adk-py (3.12, windows-latest) / test	8m 6s
langchain-py (3.10, windows-latest) / test	45s
langchain-py (3.13, windows-latest) / test	47s
build (3.12, ubuntu-latest, 1)	5m 27s
langchain-py (3.11, ubuntu-latest) / test	18s
langchain-py (3.10, ubuntu-latest) / test	18s
langchain-py (3.12, ubuntu-latest) / test	17s
upload-wheel	-1s
	2h 22m 38s

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