Fix tests with Julia 1.12

Extract list of particles, neighbors, relative positions and distances

Question: Where do inputs for benchmark_n_body come from?

Basic example for NN

GridNeighborhoodSearch update on GPU intermittent bounds error

Problem updating neighborhood search on GPU: unsupported call to modify!()

Test parallel update on multiple threads in CI

Automatically add padding to `FullGridCellList` bounding box?

Add `resize!(neighborhood_search)`

`FullGridCellList` can't handle `NaN` values and throws unspecific errors