Tests

gh-125969: fix OOB in `future_schedule_callbacks` due to an evil `cal… #365

Job	Run time
Change detection / Compute changed files	9s
Check if Autoconf files are up to date	24s
Check if generated files are up to date	3m 0s
Address sanitizer	11m 25s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.0.15)	3m 44s
Windows MSI${{ '' }}	0s
Docs	0s
CIFuzz	0s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.1.7)	3m 42s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.2.3)	4m 12s
Hypothesis tests on Ubuntu	7m 27s
Ubuntu SSL tests with OpenSSL (ubuntu-22.04, 3.3.2)	4m 15s
Thread sanitizer / Thread sanitizer	5m 5s
Thread sanitizer (free-threading) / Thread sanitizer	8m 13s
WASI / build and test	7m 6s
Windows / build (arm64)	2m 56s
Windows (free-threading) / build (arm64)	3m 28s
Windows / build and test (Win32)	16m 5s
Windows (free-threading) / build and test (Win32)	24m 16s
Windows (free-threading) / build and test (x64)	23m 51s
Windows / build and test (x64)	15m 30s
macOS / build and test (macos-13)	9m 11s
macOS / build and test (macos-14)	7m 35s
macOS (free-threading) / build and test (macos-14)	8m 16s
Ubuntu / build and test (ubuntu-22.04)	9m 18s
Ubuntu (free-threading) / build and test (ubuntu-22.04)	12m 14s
All required checks pass	2s
	3h 11m 24s

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