Restore mp-1 test to expect no base metrics now that the virtual thre…

…ads metrics are off y default

tests/integration/packaging/mp-1/src/main/java/io/helidon/tests/integration/packaging/mp1/Mp1Main.java

@@ -218,7 +218,7 @@ private static void testBean(int port, String jwtToken) {
         });
 
         invoke(collector, "Application metric registry", "Timers.size(): 1", aBean::appRegistry);
-        invoke(collector, "Base metric registry", "Timers.size(): 1", aBean::baseRegistry);
+        invoke(collector, "Base metric registry", "Timers.size(): 0", aBean::baseRegistry);
 
         // JWT-Auth
         validateJwtProtectedResource(collector, target, jwtToken);