Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phalcon/zephir dev-2440-php84#c79b710cf6bae85d928da95c02d2ab8a140ce33f, found phalcon/zephir[dev-feature/use-new-return-type-system, dev-macos-upgrade, dev-feature/references, dev-master, dev-development, dev-+733-fix-built-in-join, dev-+1849-yield, dev-+1873-call-class-property-inside-closure, dev-+1991-throw-on-invalid-return, dev-+2321-private-callback-visibility, dev-+2440-php84, dev-phpcs-changes, v0.2.0, ..., 0.18.0] but it does not match the constraint.