[3.13] gh-122311: Fix some error messages in pickle (GH-122386) #121184

Job	Run time
Check for source changes	13s
Check if generated files are up to date	4m 53s
Windows MSI${{ '' }}	0s
Address sanitizer	8m 1s
Ubuntu SSL tests with OpenSSL (1.1.1w)	2m 17s
Ubuntu SSL tests with OpenSSL (3.0.13)	2m 33s
Hypothesis tests on Ubuntu	5m 35s
Ubuntu SSL tests with OpenSSL (3.1.5)	1m 58s
Ubuntu SSL tests with OpenSSL (3.2.1)	2m 17s
CIFuzz	0s
Thread sanitizer / Thread sanitizer	4m 22s
Thread sanitizer (free-threading) / Thread sanitizer	7m 6s
WASI / build and test	9m 53s
Windows (free-threading) / build (arm64)	3m 10s
Windows / build (arm64)	3m 14s
Windows / build and test (Win32)	15m 44s
Windows (free-threading) / build and test (Win32)	23m 12s
macOS / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	4m 23s
Windows / build and test (x64)	14m 34s
Windows (free-threading) / build and test (x64)	21m 17s
macOS (free-threading) / build and test (ghcr.io/cirruslabs/macos-runner:sonoma)	5m 45s
macOS / build and test (macos-13)	9m 30s
Ubuntu / build and test	7m 29s
Ubuntu (free-threading) / build and test	9m 21s
Docs / Docs	1m 46s
Docs / Docs (Oldest Sphinx)	1m 57s
Docs / Doctest	15m 28s
All required checks pass	2s
	3h 6m 0s

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