test(sapi): use builder pattern in sapi test

Author: Xenira

tests/sapi.rs

@@ -94,5 +94,5 @@ pub fn hello_world(name: String) -> String {
 
 #[php_module]
 pub fn module(module: ModuleBuilder) -> ModuleBuilder {
-    module
+    module.function(wrap_function!(hello_world))
 }