netClustering still use future::multiprocess

[wwzhang]

multiprocess is removed from the recent version of future package, which lead to error message "No such strategy for futures: 'multiprocess'".

Please help to change it to use multisession

[SamuelAlvarezArguedas]

I have just changed multiprocess for multisession (recommended) or multicore. The script would be this: cellchat <- subsetData(cellchat) future::plan("multisession", workers = 4)

And nothing else changed.