change way we include version

pom.xml

@@ -45,6 +45,7 @@
         <gridsuite-dependencies.version>35</gridsuite-dependencies.version>
         <string-template.version>4.3.1</string-template.version>
         <liquibase-hibernate-package>org.gridsuite.filter.server</liquibase-hibernate-package>
+        <filter.version>1.0.16</filter.version>
     </properties>
 
     <build>
@@ -101,7 +102,7 @@
             <groupId>org.gridsuite</groupId>
             <artifactId>gridsuite-filter</artifactId>
             <!-- FIXME: version to be removed at next gridsuite-dependencies upgrade  -->
-            <version>1.0.16</version>
+            <version>${filter.version}</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>