[BUG] Typo in CPU generate_groundtruth calculation function

[btong04]

Typo in cpu-based for ground truth calculations. Should change all occurrences of squeclidean to sqeuclidean by swapping the e and the u so that it's spelled properly.

cuvs/python/cuvs_bench/cuvs_bench/generate_groundtruth/__main__.py

Line 171 in 862259a

def calc_truth(dataset, queries, k, metric="sqeuclidean"):