Locate .archive-unpack in /tmp/ (or equivalent on non-Linux)

### The Problem

WE unzips the languages files in ./plugins/WorldEdit/.archive-unpack/ on server start-up. That's 1.5MB of data, the vast majority of which are irrelevant, since our server uses only en-US.

### A Solution

Unzip the archive into something like /tmp/WE-archive-unpack or equivalent temporary storage on non-Linux systems.

### Alternatives

At present, plugins/WorldEdit/.archive-unpack/ is listed for exclusion from (tar) backups on our servers. But since the directory is hidden, everyone doesn't know about it, so their backups are 1.5MB larger than they need to be.

### Anything Else?

_No response_