Bump actions/checkout from 3 to 4 #3267

Job	Run time
lint / python-lint	7s
lint / clang-format	8s
lint / shell-lint	17s
ubuntu / clang-build (ubuntu-24.04-arm)	2m 56s
ubuntu / gcc-build (ubuntu-24.04, Release)	1m 44s
mac / clang-build (Release)	2m 17s
ubuntu / gcc-build (ubuntu-24.04, Debug)	1m 37s
ubuntu / gcc-build (ubuntu-24.04-arm, Debug)	3m 37s
ubuntu / clang-build (ubuntu-24.04)	2m 22s
mac / clang-build (Debug)	2m 3s
ubuntu / gcc-build (ubuntu-24.04-arm, Release)	3m 9s
windows / msvc-build (Release)	3m 9s
windows / msvc-build (Debug)	8m 31s
windows / clang-build	3m 40s
mac / clang-test	3m 25s
mac / clang-test-extended	2m 21s
ubuntu / gcc-test (ubuntu-24.04-arm)	6m 4s
ubuntu / gcc-test (ubuntu-24.04)	5m 26s
ubuntu / clang-test (ubuntu-24.04)	5m 9s
ubuntu / clang-test (ubuntu-24.04-arm)	6m 3s
ubuntu / clang-sanitizer-build (ubuntu-24.04)	1m 29s
ubuntu / clang-sanitizer-test (ubuntu-24.04)	2m 4s
ubuntu / gcc-test-extended (ubuntu-24.04)	2m 53s
ubuntu / gcc-test-extended (ubuntu-24.04-arm)	3m 17s
ubuntu / clang-test-extended (ubuntu-24.04-arm)	4m 49s
ubuntu / clang-test-extended (ubuntu-24.04)	3m 4s
windows / clang-test	1m 59s
windows / msvc-test	3m 3s
ubuntu / clang-sanitizer-test-extended (ubuntu-24.04)	2m 36s
ubuntu / gcc-build-codecov	4m 47s
windows / clang-test-extended	2m 10s
windows / msvc-test-extended	1m 59s
perf / ubuntu-gcc-build-perf-stats	2m 21s
pages / build-doxygen-xml	1m 3s
pages / build-scoreboard	14s
pages / build-sphinx	32s
pages / deploy-pages	0s
	1h 42m 25s

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