better sanitization logic for minecraft servers entering the archive.

[theoht]

In seedyloaves, we need to strip out minecraft formatting codes from user provided directories/files before saving to cloudflare

[jasperchess]

I think the new archive (with proper gzip compression) will solve this.

I want to keep the ticket around because I think it also covers things like removing files which are unnecessary for cold storage (e.g. .cache, the main server.jar file, etc)