Add camunda version properties

pom.xml

@@ -82,6 +82,7 @@
         <sonar.tests>${project.basedir}/src/test/</sonar.tests>
 
         <!-- jhipster-needle-maven-property -->
+        <camunda.springboot.version>2.3.0</camunda.springboot.version>
     </properties>
 
     <dependencyManagement>
@@ -101,12 +102,12 @@
         <dependency>
             <groupId>org.camunda.bpm.springboot</groupId>
             <artifactId>camunda-bpm-spring-boot-starter</artifactId>
-            <version>2.3.0</version>
+            <version>${camunda.springboot.version}</version>
         </dependency>
         <dependency>
             <groupId>org.camunda.bpm.springboot</groupId>
             <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
-            <version>2.3.0</version>
+            <version>${camunda.springboot.version}</version>
         </dependency>
         <dependency>
             <groupId>io.github.jhipster</groupId>