gh-94597: deprecate asyncio.set_event_loop_policy #92953

Job	Run time
Check for source changes	15s
Address sanitizer	13m 33s
macOS (free-threaded)	0s
Ubuntu SSL tests with OpenSSL (1.1.1w)	2m 27s
Windows (free-threaded)	0s
Check if generated files are up to date	4m 50s
Ubuntu SSL tests with OpenSSL (3.0.11)	2m 46s
Hypothesis tests on Ubuntu	7m 1s
Ubuntu SSL tests with OpenSSL (3.1.3)	2m 15s
Ubuntu (free-threaded)	0s
CIFuzz	0s
Windows / build and test (x64)	25m 51s
Windows / build (arm64)	4m 0s
Windows / build and test (x86)	23m 15s
macOS / build and test	9m 25s
Ubuntu / build and test	10m 3s
Docs / Docs	2m 46s
Docs / Docs (Oldest Sphinx)	2m 40s
Docs / Doctest	11m 23s
All required checks pass	3s
	2h 2m 33s

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