Update SNAPSHOT version to v2.18.0

Author: gridsuite-actions[bot]

pom.xml

@@ -18,7 +18,7 @@
     </parent>
 
     <artifactId>gridsuite-geo-data-server</artifactId>
-    <version>2.17.0-SNAPSHOT</version>
+    <version>2.18.0-SNAPSHOT</version>
 
     <name>Geo data server</name>
     <description>Geographical data server</description>