Require at least Java 17 for Spring AMQP tutorial

Author: acogoluegnes

spring-amqp/pom.xml

@@ -46,7 +46,7 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.13.0</version>
                 <configuration>
-                    <release>21</release>
+                    <release>17</release>
                 </configuration>
             </plugin>
         </plugins>