tests

Refactor to use ImageIOLoadException from brainglobe_utils (#186) #434

Job	Run time
Check manifest	40s
linting	24s
ubuntu-latest py3.11	3m 52s
Test conda-install, on ubuntu-latest	1m 41s
macos-latest py3.10	4m 26s
Test conda-install, on macos-latest	4m 30s
windows-latest py3.9	5m 15s
Test conda-install, on windows-latest	7m 25s
Build source distribution and wheel	0s
Deploy to PyPI	0s
	28m 13s

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