gh-126353: remove implicit creation of loop from `get_event_loop` #131539

Job	Run time
Change detection / Compute changed files	11s
Check if generated files are up to date	3m 24s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.0.15)	2m 23s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.1.7)	2m 24s
Windows MSI${{ '' }}	0s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.2.3)	2m 40s
Hypothesis tests on Ubuntu	5m 23s
Check if Autoconf files are up to date	27s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.3.2)	2m 28s
Address sanitizer (ubuntu-22.04)	8m 2s
CIFuzz	0s
WASI / build and test	5m 39s
Thread sanitizer / Thread sanitizer	4m 28s
Thread sanitizer (free-threading) / Thread sanitizer	7m 23s
Windows / build (arm64)	3m 8s
Windows (free-threading) / build and test (Win32)	24m 22s
Windows (free-threading) / build (arm64)	3m 9s
Windows / build and test (Win32)	16m 16s
Windows / build and test (x64)	16m 45s
Windows (free-threading) / build and test (x64)	23m 45s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	5m 17s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	4m 27s
macOS / build and test (macos-13)	10m 33s
Ubuntu / build and test (ubuntu-22.04)	7m 51s
Ubuntu (free-threading) / build and test (ubuntu-22.04)	10m 35s
Docs / Docs	2m 7s
Docs / Docs (Oldest Sphinx)	2m 13s
Docs / Doctest	28m 48s
All required checks pass	4s
	3h 24m 12s

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