Do not use zend_fcall_info_argn() in ext-curl

Using zend_fcall_info_argn() allocates the ZVALs on the heap and they need to be freed afterwards.
Handle adding them to the FCI manually so to keep them stack allocated.

Author: Girgias

ext/curl/multi.c

@@ -397,17 +397,14 @@ static int _php_server_push_callback(CURL *parent_ch, CURL *easy, size_t num_hea
 
 	zend_fcall_info_init(&t->func_name, 0, &fci, &t->fci_cache, NULL, NULL);
 
-	zend_fcall_info_argn(
-		&fci, 3,
-		pz_parent_ch,
-		&pz_ch,
-		&headers
-	);
+	ZEND_ASSERT(pz_parent_ch);
+	zval call_args[3] = {*pz_parent_ch, pz_ch, headers};
 
+	fci.param_count = 3;
+	fci.params = call_args;
 	fci.retval = &retval;
 
 	error = zend_call_function(&fci, &t->fci_cache);
-	zend_fcall_info_args_clear(&fci, 1);
 	zval_ptr_dtor_nogc(&headers);
 
 	if (error == FAILURE) {