Add version 1.2.0 #13

Job	Run time
test (msvc, 141, Release, windows-2019, 17, Static)	2m 50s
test (msvc, 141, Release, windows-2022, 17, Static)	3m 14s
test (msvc, 142, Release, windows-2019, 17, Static)	2m 42s
test (msvc, 142, Release, windows-2022, 17, Static)	3m 3s
test (msvc, 143, Release, windows-2022, 17, Static)	3m 26s
test (LLVM, 8.0.1, Release, windows-2019, 17, Static)	1m 55s
test (LLVM, 9.0.1, Release, windows-2019, 17, Static)	1m 52s
test (LLVM, 10.0.0, Release, windows-2019, 17, Static)	1m 44s
test (LLVM, 11.1.0, Release, windows-2019, 17, Static)	3m 34s
test (LLVM, 12.0.1, Release, windows-2019, 17, Static)	3m 35s
test (LLVM, 13.0.1, Release, windows-2019, 17, Static)	3m 48s
test (LLVM, 14.0.6, Release, windows-2019, 17, Static)	3m 48s
test (LLVM, 15.0.7, Release, windows-2019, 17, Static)	3m 27s
test (LLVM, 16.0.6, Release, windows-2019, 17, Static)	3m 29s
test (LLVM, 17.0.6, Release, windows-2019, 17, Static)	3m 19s
	45m 46s

Provide feedback