Use hidden visibility for symbols for non-windows platforms #1048

Job	Run time
initialize	6s
build_sdist (ubuntu-22.04, 3.9)	53s
lint (ubuntu-22.04, 3.9)	46s
build (ubuntu-22.04, 3.8, cp38, false)	9m 47s
build (ubuntu-22.04, 3.9, cp39, false)	9m 16s
build (ubuntu-22.04, 3.10, cp310, false)	9m 4s
build (ubuntu-22.04, 3.11, cp311, false)	8m 37s
build (ubuntu-22.04, 3.12, cp312, false)	9m 26s
build (macos-14, 3.11, cp311, false)	5m 28s
build (macos-14, 3.12, cp312, false)	5m 43s
build (windows-2019, 3.12, cp312, false)	15m 43s
test_sdist	0s
test_dependencies (ubuntu-20.04, 3.9, sqlalchemy>=2)	1m 0s
test_dependencies (ubuntu-20.04, 3.9, sqlalchemy<2)	54s
test_dependencies (ubuntu-20.04, 3.9, numpy==1.19.5)	1m 3s
test (ubuntu-22.04, 3.8, false)	2m 7s
test (ubuntu-22.04, 3.9, false)	2m 5s
test (ubuntu-22.04, 3.10, false)	2m 6s
test (ubuntu-22.04, 3.11, false)	1m 54s
test (ubuntu-22.04, 3.12, false)	2m 23s
test (macos-14, 3.11, false)	2m 38s
test (macos-14, 3.12, false)	2m 50s
test (windows-2019, 3.12, false)	4m 52s
publish_release_artifacts	0s
	1h 38m 41s

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