gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in free-threaded builds #137826

Job	Run time
Change detection / Compute changed files	11s
Check if generated files are up to date	4m 23s
Check if Autoconf files are up to date	25s
Address sanitizer (ubuntu-24.04)	9m 46s
Docs	0s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.0.15)	2m 24s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.1.7)	2m 15s
Windows MSI${{ '' }}	0s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.2.3)	2m 26s
CIFuzz (address)	19m 17s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.3.2)	2m 18s
CIFuzz (undefined)	21m 37s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.4.0)	2m 22s
Hypothesis tests on Ubuntu	6m 13s
CIFuzz (memory)	20m 49s
Thread sanitizer / Thread sanitizer	3m 59s
Thread sanitizer (free-threading) / Thread sanitizer	8m 14s
WASI / build and test	4m 18s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	3m 41s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	4m 6s
macOS / build and test (macos-13)	10m 23s
Ubuntu / build and test (ubuntu-24.04)	7m 58s
Ubuntu / build and test (ubuntu-24.04-aarch64)	11m 31s
Ubuntu (free-threading) / build and test (ubuntu-24.04)	11m 33s
Ubuntu (free-threading) / build and test (ubuntu-24.04-aarch64)	13m 20s
Windows / build and test (arm64)	3m 46s
Windows (free-threading) / build and test (arm64)	3m 44s
Windows / build and test (Win32)	16m 44s
Windows / build and test (x64)	15m 26s
Windows (free-threading) / build and test (x64)	22m 39s
All required checks pass	4s
	3h 55m 52s

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