Enable readability-identifier-length and tune its settings (#405) #2503

Job	Run time
python-lint	6s
clang-format	12s
ubuntu-clang-build (ubuntu-24.04-arm)	2m 8s
windows-msvc-build	2m 28s
macos-clang-build	1m 41s
ubuntu-gcc-build (ubuntu-24.04-arm)	2m 26s
ubuntu-gcc-build (ubuntu-24.04)	1m 11s
windows-clang-build	4m 31s
ubuntu-clang-build (ubuntu-24.04)	1m 8s
macos-clang-test	2m 49s
ubuntu-clang-sanitizer-build (ubuntu-24.04)	1m 39s
ubuntu-clang-test (ubuntu-24.04-arm)	5m 33s
ubuntu-clang-test (ubuntu-24.04)	4m 29s
ubuntu-gcc-test (ubuntu-24.04)	4m 11s
ubuntu-gcc-test (ubuntu-24.04-arm)	5m 30s
windows-msvc-test	2m 9s
ubuntu-clang-sanitizer-test (ubuntu-24.04)	2m 31s
macos-clang-test-extended	1m 54s
windows-clang-test	1m 31s
windows-msvc-test-extended	1m 15s
ubuntu-clang-sanitizer-test-extended (ubuntu-24.04)	1m 42s
ubuntu-clang-test-extended (ubuntu-24.04)	3m 24s
ubuntu-clang-test-extended (ubuntu-24.04-arm)	3m 53s
ubuntu-gcc-test-extended (ubuntu-24.04-arm)	3m 26s
ubuntu-gcc-test-extended (ubuntu-24.04)	2m 24s
windows-clang-test-extended	1m 16s
ubuntu-gcc-build-codecov	4m 24s
ubuntu-gcc-build-perf-stats	1m 40s
	1h 11m 31s

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