test: Cleanup imports

Author: denniskawurek

mcp-test/src/main/java/io/modelcontextprotocol/AbstractMcpClientServerIntegrationTests.java

@@ -13,8 +13,9 @@
 import java.net.http.HttpResponse;
 import java.time.Duration;
 import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.*;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.CountDownLatch;