Increase docs and client rest test timeouts for Darwin

The Darwin CI hosts continue to struggle with timeouts. This commit
increases the timouts for docs and client rest tests.

relates elastic#58286

docs/src/test/java/org/elasticsearch/smoketest/DocsClientYamlTestSuiteIT.java

@@ -59,8 +59,8 @@
 import static java.util.Collections.singletonMap;
 import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
 
-//The default 20 minutes timeout isn't always enough, please do not increase further than 30 before analyzing what makes this suite so slow
-@TimeoutSuite(millis = 30 * TimeUnits.MINUTE)
+//The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
+@TimeoutSuite(millis = 40 * TimeUnits.MINUTE)
 public class DocsClientYamlTestSuiteIT extends ESClientYamlSuiteTestCase {
 
     public DocsClientYamlTestSuiteIT(@Name("yaml") ClientYamlTestCandidate testCandidate) {

rest-api-spec/src/yamlRestTest/java/org/elasticsearch/test/rest/ClientYamlTestSuiteIT.java

@@ -21,10 +21,15 @@
 
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
 
+import com.carrotsearch.randomizedtesting.annotations.TimeoutSuite;
+import org.apache.lucene.util.TimeUnits;
 import org.elasticsearch.test.rest.yaml.ClientYamlTestCandidate;
 import org.elasticsearch.test.rest.yaml.ESClientYamlSuiteTestCase;
 
 /** Rest integration test. Runs against a cluster started by {@code gradle integTest} */
+
+//The default 20 minutes timeout isn't always enough, but Darwin CI hosts are incredibly slow...
+@TimeoutSuite(millis = 40 * TimeUnits.MINUTE)
 public class ClientYamlTestSuiteIT extends ESClientYamlSuiteTestCase {
     public ClientYamlTestSuiteIT(ClientYamlTestCandidate testCandidate) {
         super(testCandidate);