reduce .phar filesize

[staabm]

I would love to get the filesize reduced of the cachetool.phar.

we will copy it a lot within build pipelines to make it available.

I have just downloaded cachetool 5.1.3 and had a look into the phar
using php -r '$phar = new Phar("cachetool.phar"); $phar->extractTo("./cachetool");',
so we can finally see which folders take the most space (using Treesize on Windows):

the worst offenders are marked in bold.
see the amount in percent on the right.

as with most projects, vendor/ takes ~91% of the actual phar

[gordalina]

Compressed phars (gz and bz2) are now released from v6.0.0.
Look here on how to get them: https://github.com/gordalina/cachetool#installation---latest-version