Unpin Spinx now that typehints issue ought to be resolved #4075

Job	Run time
test_without_debugpy (ubuntu-latest, 3.10)	37s
Test Lint	41s
test_docs	44s
check_release	39s
Test Minimum Versions	35s
link_check	43s
Test Prereleases	43s
Make SDist	29s
build (ubuntu-latest, qt5, pypy-3.11)	1m 5s
build (ubuntu-latest, qt6, 3.11)	47s
build (ubuntu-latest, qt6, pypy-3.11)	43s
build (windows-latest, qt5, 3.14)	1m 3s
build (windows-latest, qt6, 3.10)	48s
build (ubuntu-latest, qt5, 3.14)	48s
build (windows-latest, qt5, pypy-3.11)	56s
build (windows-latest, qt6, 3.11)	38s
build (ubuntu-latest, qt6, 3.10)	50s
build (ubuntu-latest, qt6, 3.13)	56s
build (windows-latest, qt5, 3.10)	1m 4s
build (ubuntu-latest, qt6, 3.12)	1m 4s
build (windows-latest, qt6, 3.13)	52s
build (macos-latest, qt5, pypy-3.11)	52s
build (macos-latest, qt6, 3.11)	59s
build (windows-latest, qt6, pypy-3.11)	1m 9s
build (macos-latest, qt6, 3.13)	1m 6s
build (ubuntu-latest, qt5, 3.10)	48s
build (macos-latest, qt6, pypy-3.11)	53s
build (macos-latest, qt5, 3.10)	53s
build (macos-latest, qt5, 3.14)	58s
build (macos-latest, qt6, 3.10)	1m 7s
build (windows-latest, qt6, 3.12)	55s
build (macos-latest, qt6, 3.12)	55s
Install from SDist and Test	16s
coverage	1s
	27m 37s

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