Remove top-level import of `pyarrow` (#1703) #80

Job	Run time
validate-inputs	1s
validate-library-version	14s
svn-build-artifacts / Build artifacts for SVN on ubuntu-22.04	5m 35s
pypi-build-artifacts / Build artifacts for PyPi on ubuntu-22.04	5m 35s
pypi-build-artifacts / Build artifacts for PyPi on windows-2022	5m 53s
pypi-build-artifacts / Build artifacts for PyPi on macos-13	4m 26s
svn-build-artifacts / Build artifacts for SVN on windows-2022	6m 56s
pypi-build-artifacts / Build artifacts for PyPi on macos-14	2m 21s
svn-build-artifacts / Build artifacts for SVN on macos-13	4m 28s
svn-build-artifacts / Build artifacts for SVN on macos-14	2m 26s
pypi-build-artifacts / pypi-merge-artifacts	7s
svn-build-artifacts / svn-merge-artifacts	3s
	38m 5s

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