don't replace spaces with periods in data frame conversion #384

Job	Run time
build_python_kernels (3.9, base)	3m 50s
base-linting	2m 41s
Run pre-commit hooks	33s
build_rlang_kernels (4.3.0)	1h 24m 17s
build_python_kernels (3.9, base-gpu)	10m 7s
build_python_kernels (3.10, base)	3m 30s
build_python_kernels (3.10, base-gpu)	10m 11s
build_deno_kernels (1.37)	2m 0s
build_rust_kernels (1.70.0)	9m 24s
create_release	0s
	2h 6m 33s

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