Update MSVC OpenMP flags #3074

Job	Run time
lint / clang-format	11s
lint / python-lint	6s
lint / shell-lint	13s
ubuntu / ubuntu-clang-build (ubuntu-24.04)	1m 28s
ubuntu / ubuntu-clang-build (ubuntu-24.04-arm)	1s
mac / macos-clang-build (Release)	49s
ubuntu / ubuntu-gcc-build (ubuntu-24.04, Release)	1s
ubuntu / ubuntu-gcc-build (ubuntu-24.04-arm, Release)	1s
ubuntu / ubuntu-gcc-build (ubuntu-24.04-arm, Debug)	1m 35s
windows / windows-msvc-build (Release)	22s
ubuntu / ubuntu-gcc-build (ubuntu-24.04, Debug)	1s
mac / macos-clang-build (Debug)	1m 40s
windows / windows-msvc-build (Debug)	1m 20s
windows / windows-clang-build	13s
ubuntu / ubuntu-gcc-test	1s
ubuntu / ubuntu-gcc-test-extended	1s
ubuntu / ubuntu-clang-test-extended	1s
ubuntu / ubuntu-clang-sanitizer-build	1s
ubuntu / ubuntu-clang-test	1s
ubuntu / ubuntu-clang-sanitizer-test	1s
ubuntu / ubuntu-gcc-build-codecov	1s
ubuntu / ubuntu-clang-sanitizer-test-extended	1s
windows / windows-clang-test	1s
windows / windows-clang-test-extended	1s
windows / windows-msvc-test	1s
windows / windows-msvc-test-extended	1s
mac / macos-clang-test	1s
mac / macos-clang-test-extended	1s
perf	0s
	8m 15s

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