Use new Axon BOM

Use the Axon BOM to set the versions for the Axon dependencies

#BAEL-4947

axon/pom.xml

@@ -15,17 +15,27 @@
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.axonframework</groupId>
+                <artifactId>axon-bom</artifactId>
+                <version>4.5.0</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <dependencies>
         <dependency>
             <groupId>org.axonframework</groupId>
             <artifactId>axon-spring-boot-starter</artifactId>
-            <version>${axon.version}</version>
         </dependency>
 
         <dependency>
             <groupId>org.axonframework</groupId>
             <artifactId>axon-test</artifactId>
-            <version>${axon.version}</version>
             <scope>test</scope>
         </dependency>
 
@@ -52,8 +62,4 @@
         </dependency>
     </dependencies>
 
-    <properties>
-        <axon.version>4.4.7</axon.version>
-    </properties>
-
 </project>