feat: Support Sequence[float] as query_vector in FindNearest

[pl04351820]

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Allow for syntax like:

findNearest(
  vector_field = "embedding_field",
  query_vector = [1.0, 2.0, 3.0],
  limit = 5,
  distance_measure = DistanceMeasure.EUCLIDEAN
)

[conventional-commit-lint-gcf]

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