Update Microsoft.Extensions.AI.OpenAI version reference (#1456) #2467

Job	Run time
build (windows-latest, Debug)	12m 38s
build (windows-latest, Release)	20m 44s
build (ubuntu-latest, Debug)	13m 32s
build (macos-latest, Release)	6m 48s
build (macos-latest, Debug)	6m 39s
build (ubuntu-latest, Release)	7m 59s
publish-coverage	0s
	1h 8m 20s

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