Add Java 21 to list of supported Java versions

Author: acogoluegnes

site/java-versions.md

@@ -33,7 +33,7 @@ maintained by the RabbitMQ team.
     <td><a href="https://github.com/rabbitmq/rabbitmq-java-client" target="_blank" rel="noopener noreferrer">AMQP 0.9.1 Java Client</a> 5.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>8, 11, 17, 19, 20</td>
+    <td>8, 11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>
@@ -47,21 +47,21 @@ maintained by the RabbitMQ team.
     <td><a href="https://github.com/rabbitmq/rabbitmq-stream-java-client" target="_blank" rel="noopener noreferrer">Stream Java Client</a> 0.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>8, 11, 17, 19, 20</td>
+    <td>8, 11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>
     <td><a href="https://github.com/rabbitmq/rabbitmq-jms-client" target="_blank" rel="noopener noreferrer">JMS Client</a> 3.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>11, 17, 19, 20</td>
+    <td>11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>
     <td><a href="https://github.com/rabbitmq/rabbitmq-jms-client" target="_blank" rel="noopener noreferrer">JMS Client</a> 2.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>8, 11, 17, 19, 20</td>
+    <td>8, 11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>
@@ -75,14 +75,14 @@ maintained by the RabbitMQ team.
     <td><a href="https://github.com/rabbitmq/rabbitmq-perf-test" target="_blank" rel="noopener noreferrer">PerfTest</a> 2.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>8, 11, 17, 19, 20</td>
+    <td>8, 11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>
     <td><a href="https://github.com/rabbitmq/hop" target="_blank" rel="noopener noreferrer">Hop</a> 5.x</td>
     <td>Currently supported</td>
     <td></td>
-    <td>11, 17, 19, 20</td>
+    <td>11, 17, 19, 20, 21</td>
   </tr>
 
   <tr>