Log Message:
libzip: update to 1.8.0.

Add one post-release patch.

1.8.0 [2021-06-18]
==================

* Add support for zstd (Zstandard) compression.
* Add support for lzma (ID 14) compression.
* Add `zip_source_window_create()`.
* Add `zip_source_zip_create()` variant to `zip_source_zip()`.
* Allow method specific `comp_flags` in `zip_set_file_compression()`.
* Allow `zip_source_tell()` on sources that don't support seeking and \ 
`zip_ftell()` on compressed data.
* Provide more details for consistency check errors.
* Improve output of `zipcmp`.
* In `zipcmp`, don’t ignore empty directories when comparing directory listing.
* Treat empty string as no password given in `zip_file_set_encryption()`, \ 
`zip_fopen_encrypted()`, and `zip_set_default_password()`.