Raise the timeout in quic_client_test.c

Recently the Coveralls CI run started failing
because it times out in this test.
Outside of Coveralls it runs fine so assuming that
this is caused by slow execution under Coveralls.

Reviewed-by: Matt Caswell <[email protected]>
Reviewed-by: Hugo Landau <[email protected]>
(Merged from openssl#21844)

test/quic_client_test.c

@@ -92,7 +92,7 @@ static int test_quic_client(void)
 
     for (;;) {
         if (ossl_time_compare(ossl_time_subtract(ossl_time_now(), start_time),
-                              ossl_ms2time(3000)) >= 0) {
+                              ossl_ms2time(10000)) >= 0) {
             TEST_error("timeout while attempting QUIC client test");
             goto err;
         }