Higher timeout for CreateProjectTest#createMultipleTimes

I doubt it will fix the issues we are seeing but let's try that first.

AFAICS, it's always JDK 17 failing for whatever reason.

integration-tests/devtools/src/test/java/io/quarkus/devtools/commands/CreateProjectTest.java

@@ -231,7 +231,7 @@ public void createOnTopOfExisting() throws Exception {
     }
 
     @Test
-    @Timeout(3)
+    @Timeout(6)
     @DisplayName("Should create correctly multiple times in parallel with multiple threads")
     void createMultipleTimes() throws InterruptedException {
         final ExecutorService executorService = Executors.newFixedThreadPool(4);