[ZEPPELIN-6406] Disable entire InterpreterModeActionsIT class

All three tests in InterpreterModeActionsIT fail on CI due to Selenium
element timeout issues. Disable at class level instead of chasing
individual test methods.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jongyoul

zeppelin-integration/src/test/java/org/apache/zeppelin/integration/InterpreterModeActionsIT.java

@@ -45,6 +45,7 @@
 import java.time.Duration;
 
 
+@Disabled("ZEPPELIN-6410: InterpreterModeActionsIT consistently fails due to Selenium element timeouts on CI")
 public class InterpreterModeActionsIT extends AbstractZeppelinIT {
   private static final Logger LOGGER = LoggerFactory.getLogger(InterpreterModeActionsIT.class);