Remove `macos-latest` job matrix from Test CI #229

Job	Run time
Functional Python 3 web tests	6m 34s
Build the documentation	35s
Validate coverage	31s
Lint the package	26s
Python: 3.8-x64 on ubuntu-latest	21s
Python: 3.8-x64 on windows-latest	14s
Python: 3.8-x86 on windows-latest	14s
Python: 3.8-x64 on macos-latest	12s
Python: 3.9-x64 on ubuntu-latest	1s
Python: 3.9-x64 on windows-latest	1s
Python: 3.9-x86 on windows-latest	1s
Python: 3.9-x64 on macos-latest	1s
Python: 3.10-x64 on ubuntu-latest	27s
Python: 3.10-x64 on windows-latest	17s
Python: 3.10-x86 on windows-latest	15s
Python: 3.10-x64 on macos-latest	11s
Python: 3.11-x64 on ubuntu-latest	25s
Python: 3.11-x64 on windows-latest	14s
Python: 3.11-x86 on windows-latest	14s
Python: 3.11-x64 on macos-latest	16s
Python: 3.12-x64 on ubuntu-latest	26s
Python: 3.12-x64 on windows-latest	14s
Python: 3.12-x86 on windows-latest	12s
Python: 3.12-x64 on macos-latest	16s
Python: pypy-3.10-x64 on ubuntu-latest	1s
Python: pypy-3.10-x64 on windows-latest	1s
Python: pypy-3.10-x86 on windows-latest	1s
Python: pypy-3.10-x64 on macos-latest	1s
Python: pypy-3.7- on ubuntu-latest	1s
	12m 43s

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