feat(add): LLM integration of Cloudflare Workers AI (#14322) #11500

Job	Run time
Python 3.8 extended tests	9m 53s
Python 3.9 extended tests	2m 44s
Python 3.10 extended tests	2m 38s
Python 3.11 extended tests	9m 53s
lint / build (3.8)	46s
lint / build (3.11)	42s
test / Python 3.8	28s
test / Python 3.9	25s
test / Python 3.10	34s
test / Python 3.11	26s
compile-integration-tests / Python 3.8	27s
compile-integration-tests / Python 3.9	31s
compile-integration-tests / Python 3.10	29s
compile-integration-tests / Python 3.11	34s
pydantic-compatibility / Pydantic v1/v2 compatibility - Python 3.8	32s
pydantic-compatibility / Pydantic v1/v2 compatibility - Python 3.9	31s
pydantic-compatibility / Pydantic v1/v2 compatibility - Python 3.10	37s
pydantic-compatibility / Pydantic v1/v2 compatibility - Python 3.11	1m 10s
	33m 20s

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