Update C++ style guide #2040

Job	Run time
Quick Checks	8s
Documentation	11m 55s
ubuntu-latest / gcc / Debug	15m 46s
windows-2019 / Debug	5m 6s
ubuntu-latest / gcc / RelWithDebInfo	19m 3s
windows-2019 / RelWithDebInfo	4m 9s
ubuntu-20.04 / clang / Debug	16m 34s
windows-2022 / Debug	4m 23s
ubuntu-20.04 / clang / RelWithDebInfo	16m 25s
windows-2022 / RelWithDebInfo	4m 19s
macos-12 / clang / Debug	9m 3s
macos-12 / clang / RelWithDebInfo	4m 27s
	1h 51m 18s

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