add msys2 CI #418

Job	Run time
linux-clang-extra (-fno-rtti, Debug)	4m 2s
linux (g++-9, Debug)	3m 55s
linux-clang-extra (-fno-rtti, Release)	5m 36s
linux (g++-9, Release)	4m 41s
linux-clang-extra (-fno-exceptions, Debug)	2m 42s
linux-clang-extra (-fno-exceptions, Release)	3m 50s
linux (g++-10, Debug)	4m 13s
linux-clang-extra (-fms-extensions, Debug)	4m 1s
linux (g++-10, Release)	5m 15s
linux-clang-extra (-fms-extensions, Release)	5m 48s
linux (g++-11, Debug)	4m 14s
linux (g++-11, Release)	5m 19s
linux (g++-12, Debug)	4m 50s
linux-gcc-extra (-fno-rtti, Debug)	3m 59s
linux (g++-12, Release)	6m 10s
linux-gcc-extra (-fno-rtti, Release)	5m 17s
linux (clang++-12, Debug)	2s
linux-gcc-extra (-fno-exceptions, Debug)	2m 49s
linux (clang++-12, Release)	4s
linux-gcc-extra (-fno-exceptions, Release)	3m 31s
linux (clang++-13, Debug)	3m 59s
linux (clang++-13, Release)	5m 57s
linux (clang++-14, Debug)	4m 1s
linux-old (clang++-7, Debug)	3m 52s
linux (clang++-14, Release)	9m 40s
linux-old (clang++-7, Release)	5m 28s
linux-old (clang++-8, Debug)	4m 4s
linux-old (clang++-8, Release)	6m 57s
linux-old (clang++-9, Debug)	4m 7s
linux-old (clang++-9, Release)	5m 47s
linux-old (clang++-10, Debug)	4m 3s
linux-old (clang++-10, Release)	6m 15s
linux-old (clang++-11, Debug)	4m 5s
linux-old (clang++-11, Release)	6m 0s
	2h 34m 33s

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