feat!: Clean up async usage across SDK #694

Job	Run time
server-ai-langchain-windows (3.12)	25s
server-ai-langchain-windows (3.11)	25s
server-ai-langchain-windows (3.13)	22s
server-ai-langchain-linux (3.10)	23s
server-ai-langchain-windows (3.14)	33s
server-ai-langchain-linux (3.13)	20s
server-ai-langchain-windows (3.10)	23s
server-ai-openai-linux (3.10)	25s
server-ai-openai-windows (3.14)	26s
server-ai-openai-linux (3.13)	25s
server-ai-openai-windows (3.10)	30s
server-ai-langchain-linux (3.14)	21s
server-ai-windows (3.14)	26s
server-ai-langchain-linux (3.12)	19s
server-ai-openai-linux (3.11)	24s
server-ai-windows (3.13)	22s
server-ai-windows (3.11)	22s
server-ai-linux (3.13)	18s
server-ai-optimization-windows (3.11)	23s
server-ai-openai-linux (3.14)	29s
server-ai-openai-windows (3.11)	38s
server-ai-linux (3.10)	18s
server-ai-langchain-linux (3.11)	22s
server-ai-optimization-linux (3.10)	14s
server-ai-optimization-windows (3.13)	21s
server-ai-linux (3.12)	15s
server-ai-linux (3.11)	19s
server-ai-windows (3.12)	23s
server-ai-optimization-windows (3.12)	28s
server-ai-openai-windows (3.13)	29s
server-ai-linux (3.14)	20s
server-ai-optimization-windows (3.10)	28s
server-ai-optimization-linux (3.12)	11s
server-ai-windows (3.10)	23s
server-ai-optimization-windows (3.14)	24s
server-ai-optimization-linux (3.14)	12s
server-ai-optimization-linux (3.11)	15s
server-ai-openai-windows (3.12)	33s
server-ai-openai-linux (3.12)	26s
server-ai-optimization-linux (3.13)	15s
	15m 15s

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