Add SimpleInit runner test #3926

Job	Run time
pre-commit / pre-commit	1m 25s
mac / clang-build (Debug)	2m 40s
mac / clang-build (Release)	2m 36s
windows / clang-build	2m 29s
windows / msvc-build (Release)	2m 56s
ubuntu / gcc-build (ubuntu-24.04, Release)	1m 47s
ubuntu / gcc-build (ubuntu-24.04-arm, Release)	1m 16s
windows / msvc-build (Debug)	2m 53s
ubuntu / gcc-build (ubuntu-24.04-arm, Debug)	1m 27s
ubuntu / clang-build (ubuntu-24.04-arm)	1m 33s
ubuntu / gcc-build (ubuntu-24.04, Debug)	1m 48s
ubuntu / clang-build (ubuntu-24.04)	1m 12s
ubuntu / clang-test (ubuntu-24.04-arm)	6h 0m 3s
ubuntu / clang-sanitizer-build (ubuntu-24.04)	1m 57s
ubuntu / clang-test (ubuntu-24.04)	6h 0m 4s
windows / clang-test	41m 12s
mac / clang-test	6h 0m 18s
ubuntu / gcc-test (ubuntu-24.04-arm)	6h 0m 3s
ubuntu / gcc-test (ubuntu-24.04)	6h 0m 4s
windows / msvc-test	43m 49s
ubuntu / clang-sanitizer-test (ubuntu-24.04)	6h 0m 2s
windows / clang-test-extended	0s
windows / msvc-test-extended	0s
ubuntu / clang-test-extended	0s
ubuntu / gcc-build-codecov	0s
ubuntu / gcc-test-extended	0s
mac / clang-test-extended	-1s
ubuntu / clang-sanitizer-test-extended	0s
pages	0s
perf	0s
	1d 13h 51m 33s

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