Some tar binaries (like the one from busybox in buildroot) have troubles with "tar -z" parameters. This patch overcomes the problem calling to gzip prior to tar.
The installation method used up until now would always leave one copy of the lazydocker binary in the extraction directory. This copy is not actually needed after installation, so it should be removed. TheAxelander also pointed this out in his comment at https://github.com/jesseduffield/lazydocker/issues/270#issuecomment-1042983635.
This commit changes that behaviour and makes the install script cleanup after itself.
