www/py-httpcore: Fix build after 7f9c0a770d4cb27d603401d526f22c3abc310db6 (py-h11 0.14.0 update)
- Bump PORTREVISION for package change
Obtained from: https://github.com/encode/httpcore/commit/4cf288e0007cb73561b9020af9228f076ba2a94e
Reference: http://beefy18.nyi.freebsd.org/data/main-amd64-default/p97fda7e3a598_s813c5b75e6/logs/py39-httpcore-0.15.0.log