ref: Align span metadata type #195

Job	Run time
langchain-py (3.10, windows-latest) / test	1m 1s
build (3.10, ubuntu-latest, 1)	6m 6s
build (3.13, ubuntu-latest, 1)	5m 31s
langchain-py (3.11, windows-latest) / test	1m 9s
build (3.11, ubuntu-latest, 0)	4m 18s
langchain-py (3.13, ubuntu-latest) / test	28s
build (3.11, windows-latest, 0)	8m 15s
langchain-py (3.10, ubuntu-latest) / test	26s
adk-py / test	23s
build (3.12, windows-latest, 0)	8m 30s
build (3.10, ubuntu-latest, 0)	4m 25s
build (3.11, ubuntu-latest, 1)	5m 41s
build (3.14, ubuntu-latest, 0)	4m 34s
build (3.13, windows-latest, 0)	9m 50s
build (3.11, windows-latest, 1)	10m 39s
build (3.12, ubuntu-latest, 1)	5m 18s
build (3.13, ubuntu-latest, 0)	4m 25s
langchain-py (3.13, windows-latest) / test	59s
langchain-py (3.11, ubuntu-latest) / test	23s
build (3.14, windows-latest, 1)	10m 26s
build (3.14, ubuntu-latest, 1)	5m 38s
build (3.14, windows-latest, 0)	8m 44s
langchain-py (3.12, windows-latest) / test	59s
build (3.12, windows-latest, 1)	10m 41s
build (3.10, windows-latest, 1)	11m 43s
build (3.13, windows-latest, 1)	10m 50s
build (3.10, windows-latest, 0)	8m 33s
langchain-py (3.12, ubuntu-latest) / test	32s
build (3.12, ubuntu-latest, 0)	4m 16s
upload-wheel	0s
	2h 34m 43s

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