Activate dynamic batching by default

References rabbitmq/rabbitmq-stream-java-client#671

Author: acogoluegnes

Diff for: pom.xml

@@ -45,7 +45,7 @@
   </scm>
 
   <properties>
-    <stream-client.version>0.20.0</stream-client.version>
+    <stream-client.version>0.21.0-SNAPSHOT</stream-client.version>
     <slf4j.version>2.0.16</slf4j.version>
     <logback.version>1.5.12</logback.version>
     <netty.version>4.1.115.Final</netty.version>

Diff for: src/main/java/com/rabbitmq/stream/perf/StreamPerfTest.java

@@ -458,7 +458,7 @@ public class StreamPerfTest implements Callable<Integer> {
   @CommandLine.Option(
       names = {"--dynamic-batch-size", "-dbs"},
       description = "use dynamic batch size for publishing",
-      defaultValue = "false")
+      defaultValue = "true")
   private boolean dynamicBatch;
 
   @CommandLine.Option(
@@ -504,7 +504,7 @@ static class InstanceSyncOptions {
   @CommandLine.Option(
       names = {"--initial-credits", "-ic"},
       description = "initial credits for subscription",
-      defaultValue = "1",
+      defaultValue = "10",
       converter = Utils.NotNegativeIntegerTypeConverter.class)
   private int initialCredits;