Bug 40930: Update zlib to 1.3

projects/zlib/config

 # vim: filetype=yaml sw=2
 filename: '[% project %]-[% c("version") %]-[% c("var/osname") %]-[% c("var/build_id") %].tar.[% c("compress_tar") %]'
-version: 1.2.13
+version: '1.3'
 git_hash: 'v[% c("version") %]'
 git_url: https://github.com/madler/zlib.git
 gpg_keyring: zlib.gpg