Declare main() with argc/argv params in tests

Declaring the main method as "int main(void)" causes issues with SDL.

Fixes #1209 <https://github.com/Genymobile/scrcpy/issues/1209>

app/tests/test_queue.c

@@ -32,7 +32,10 @@ static void test_queue(void) {
     assert(queue_is_empty(&queue));
 }
 
-int main(void) {
+int main(int argc, char *argv[]) {
+    (void) argc;
+    (void) argv;
+
     test_queue();
     return 0;
 }