updated generate_sample_*_data functions to SampleFileGenerator syntax #9

Job	Run time
nipype-conv	34s
fileformats-test (3.8)	18s
fileformats-test (3.11)	12s
devcheck (3.8, pydra)	35s
devcheck (3.8, --editable git+https://github.com/nipype/pydra.git#egg=pydra)	35s
test	0s
devcheck (3.8, --editable, pydra)	32s
devcheck (3.8, --editable, --editable git+https://github.com/nipype/pydra.git#egg=pydra)	37s
devcheck (3.11, pydra)	30s
devcheck (3.11, --editable git+https://github.com/nipype/pydra.git#egg=pydra)	33s
devcheck (3.11, --editable, pydra)	32s
devcheck (3.11, --editable, --editable git+https://github.com/nipype/pydra.git#egg=pydra)	34s
deploy-fileformats	0s
deploy-fileformats-extras	0s
deploy	0s
	5m 32s

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