net/pecl-radius: Fix build with php84 (8.4.0beta4+)
Reference: https://github.com/php/php-src/commit/8cf8751533aa37479f8f2e229e407e9bf6025237
https://github.com/php/php-src/commit/3e05c86c35e23d97a29f3f1ba0070df73fdf914f https://pkg-status.freebsd.org/beefy16/data/133amd64-default/94b089c7ad30/logs/php84-pecl-radius-1.4.0b1_2.log https://pkg-status.freebsd.org/beefy22/data/140amd64-default/94b089c7ad30/logs/php84-pecl-radius-1.4.0b1_2.log https://pkg-status.freebsd.org/beefy18/data/main-amd64-default/p94b089c7ad30_sb162fc3f309/logs/php84-pecl-radius-1.4.0b1_2.log