Add --large-memory flag for REDIS_TEST to enable tests that consume more than 100mb (#9784)

This is a preparation step in order to add a new test in quicklist.c see #9776

src/util.c

@@ -959,10 +959,10 @@ static void test_ll2string(void) {
 }
 
 #define UNUSED(x) (void)(x)
-int utilTest(int argc, char **argv, int accurate) {
+int utilTest(int argc, char **argv, int flags) {
     UNUSED(argc);
     UNUSED(argv);
-    UNUSED(accurate);
+    UNUSED(flags);
 
     test_string2ll();
     test_string2l();