Fix test failure with PROJ 9.8.0. #1176

Job	Run time
build_sdist	17s
Build wheels on macos-14 arm64	4m 21s
Build wheels on ubuntu-22.04 x86_64	6m 36s
Build wheels on macos-15-intel x86_64	10m 5s
Build wheels on windows-latest ARM64	7m 16s
Build wheels on ubuntu-24.04-arm aarch64	6m 37s
Build wheels on windows-latest AMD64	8m 43s
upload_pypi	9s
upload_test_pypi	0s
	44m 4s

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