[BUG] Restore the original default order of CSR, which does not reverse edges in cuGraph-PyG #3980
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OGB and many other datasets express the edge index in CSR order, but in release 23.10, the default order was changed to CSC, which broke downstream workflows. This PR restores the original default, which should be acceptable for the most common datasets, and familiar to most PyG users.
Closes #3969