tests

Bump pypa/cibuildwheel from 2.16 to 2.20 #614

Job	Run time
C++ Tests on windows-latest	5m 55s
Tests on 32-bit Linux	4m 52s
Python 3.7 Tests on ubuntu-latest	1m 32s
C++ Tests on windows-latest MinGW 13	7m 52s
Python 3.11 Tests on ubuntu-latest	1m 19s
C++ Tests on ubuntu-20.04 LLVM 8	2m 28s
Python pypy-3.9 Tests on ubuntu-latest	1m 41s
C++ Tests on ubuntu-20.04 GCC 8	3m 8s
C++ Tests on ubuntu-latest GCC 9	3m 50s
Python 3.7 Tests on macos-latest	8s
C++ Tests on ubuntu-latest GCC 13	5m 5s
Python 3.11 Tests on macos-latest	1m 10s
C++ Tests on macos-latest	1m 43s
Python pypy-3.9 Tests on macos-latest	1m 12s
Python 3.7 Tests on windows-latest	2m 32s
Python 3.11 Tests on windows-latest	2m 39s
Python pypy-3.9 Tests on windows-latest	3m 32s
	50m 38s

Provide feedback