Merge pull request #41724 from gsmet/clear-vertxmdc-threadlocal

Clear the VertxMDC ThreadLocal when shutting down Vert.x

extensions/vertx/runtime/src/main/java/io/quarkus/vertx/core/runtime/VertxCoreRecorder.java

@@ -451,6 +451,7 @@ public void handle(AsyncResult<Void> ar) {
                 Thread.currentThread().interrupt();
                 throw new IllegalStateException("Exception when closing Vert.x instance", e);
             }
+            VertxMDC.INSTANCE.clear();
             LateBoundMDCProvider.setMDCProviderDelegate(null);
             vertx = null;
         }