Make Date header parsing locale-independent #2172

Job	Run time
PSV.Linux.22.04.gcc9.Cpplint	9m 9s
PSV.Linux.22.04.gcc9.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 47s
PSV.iOS.MacOS14.Xcode15.ARM64	8m 53s
PSV.Linux.22.04.gcc11	8m 25s
PSV.Linux.22.04.clang	9m 0s
PSV.MacOS15.Xcode16.ARM64	3m 40s
PSV.Clang.Format.Checker	43s
PSV.Commit.Checker	6s
PSV.iOS.MacOS15.Xcode26.ARM64	5m 53s
PSV.Linux.latest.gcc14.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 45s
PSV.Linux.Android.22.04	5m 46s
PSV.Linux.22.04.gcc11.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 41s
PSV.Win.VC2022	9m 53s
PSV.iOS.MacOS15.Xcode16.ARM64	8m 44s
PSV.Linux.22.04.gcc13	18m 20s
PSV.Linux.22.04.gcc9.Tests.CodeCov	5m 9s
	1h 41m 54s

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