Add PHP 8.5 (ZTS)

[llupa]

• Removed the opcache package installation (now built into PHP 8.5 core)
• Updated all peclzts84 references to peclzts85
• Updated phpizezts84 to phpizezts85
• refs/heads/3.7.0.tar.gz to refs/tags/3.8.1.tar.gz (3.8.1 includes PHP 8.5 support php_smart_string.h fix)
• Removed sed 's/php_strtolower/zend_str_tolower/' (Already fixed in 3.8.1 )
• go~=1.23 to go~=1.25 (Alpine 3.23 ships Go 1.25, not 1.23)
• dunglas/frankenphp to php/frankenphp (Repo moved to official PHP organization)
• v1.4.0 to v1.11.1 (v1.10.0+ has PHP 8.5 support)
• Added -Wno-error=attributes to CFLAGS (Suppress GCC warning for preserve_none attribute (PHP 8.5 uses new calling convention))
• install grpc to install grpc-1.78.0RC2 (1.78.0RC2 includes PHP 8.5 support)
• Added sed 's/pkgname=unit-php85/pkgname=unit-phpzts85/' (Rename package so final stage can find unit-phpzts85)