package/harfbuzz: bump to version 3.0.0
This major version introduces 16 new APIs[1] and remove 20 of them
considered unstable[2]. All packages that depends on harfbuzz build
correctly with this new version because they don't use the "old unstable"
APIs.
[1]: https://github.com/harfbuzz/harfbuzz/blob/main/NEWS#L11-L27
[2]: https://github.com/harfbuzz/harfbuzz/blob/main/NEWS#L29-L49
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>