CI: build with hidden symbols using Clang #2250

Job	Run time
PSV.Linux.latest.gcc14.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	4m 35s
PSV.Linux.22.04.gcc9.Cpplint	9m 41s
PSV.Linux.22.04.gcc11	8m 28s
PSV.Linux.22.04.gcc9.Tests.CodeCov	11m 2s
PSV.Linux.24.04.gcc13.Tests	8m 1s
PSV.Linux.22.04.gcc11.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	3m 19s
PSV.iOS.MacOS15.Xcode26.ARM64	8m 25s
PSV.Win.VC2022	10m 29s
PSV.Linux.22.04.gcc11.OLP_SDK_NO_EXCEPTION=ON	7m 28s
PSV.iOS.MacOS15.Xcode16.ARM64	7m 19s
PSV.Clang.Format.Checker	37s
PSV.Linux.Android.22.04	7m 29s
PSV.iOS.MacOS14.Xcode15.ARM64	7m 15s
PSV.Linux.22.04.clang	8m 12s
PSV.MacOS15.Xcode16.ARM64	8m 35s
PSV.Linux.22.04.clang.hidden	3m 47s
PSV.Linux.22.04.gcc9.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 57s
PSV.Commit.Checker	6s
	1h 57m 45s

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