Tests

Docs: fix docstring of `email.message.Message.add_header` #154575

Job	Run time
Change detection / Create context from changed files	14s
Check if generated files are up to date	4m 8s
Check if Autoconf files are up to date	28s
Address sanitizer (ubuntu-24.04)	11m 11s
Docs	0s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.0.16)	2m 35s
Windows MSI${{ '' }}	0s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.1.8)	2m 21s
Cross build Linux	3m 58s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.2.4)	2m 32s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.3.3)	3m 9s
Hypothesis tests on Ubuntu	8m 19s
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.4.1)	2m 15s
CIFuzz	0s
WASI / build and test	4m 59s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	5m 52s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	4m 49s
macOS / build and test (macos-13)	10m 51s
Ubuntu / build and test (ubuntu-24.04)	10m 57s
Ubuntu / build and test (ubuntu-24.04-arm)	7m 53s
Ubuntu (free-threading) / build and test (ubuntu-24.04)	16m 4s
Ubuntu (free-threading) / build and test (ubuntu-24.04-arm)	12m 31s
Ubuntu (bolt) / build and test (ubuntu-24.04)	17m 6s
Windows / Build and test (arm64)	18m 21s
Windows (free-threading) / Build and test (arm64)	23m 7s
Thread sanitizer / Thread sanitizer	7m 55s
Thread sanitizer (free-threading) / Thread sanitizer	13m 22s
Windows / Build and test (Win32)	19m 0s
Windows / Build and test (x64)	18m 4s
Windows (free-threading) / Build and test (x64)	24m 46s
All required checks pass	4s
	4h 16m 51s

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