build: fix PHP 8.4 installation on macOS

Author: donhardman

build-osx

@@ -10,7 +10,9 @@ set -e
 . helper.sh
 
 install_deps() {
-  brew install php@8.4 bash curl autoconf automake bison re2c zstd git openssl zlib cmake libzip librdkafka libiconv llvm@17
+  brew tap shivammathur/php
+  brew install shivammathur/php/php@8.4 bash curl autoconf automake bison re2c zstd git openssl zlib cmake libzip librdkafka libiconv llvm@17
+  brew link --overwrite --force shivammathur/php/php@8.4
 
   OPENSSL_PREFIX="$(brew --prefix openssl)"
   LIBRDKAFKA_PREFIX="$(brew --prefix librdkafka)"