[PATCH 1 of 2] Simplify setting restlet version

[Wald Commits]

# HG changeset patch
# User Tom Gottfried <tom at intevation.de>
# Date 1673961731 -3600
#      Tue Jan 17 14:22:11 2023 +0100
# Branch 3.2.x
# Node ID 0289069c3149acc1379bfe95cb5f862d4466c000
# Parent  0ed1c01dca80d68877294142b821fefef07786b2
Simplify setting restlet version

diff -r 0ed1c01dca80 -r 0289069c3149 pom.xml
--- a/pom.xml	Mon Jan 16 11:49:45 2023 +0100
+++ b/pom.xml	Tue Jan 17 14:22:11 2023 +0100
@@ -12,6 +12,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <restlet.version>2.0.7</restlet.version>
   </properties>
 
   <build>
@@ -57,17 +58,17 @@
     <dependency>
       <groupId>org.restlet.jse</groupId>
       <artifactId>org.restlet</artifactId>
-      <version>2.0.7</version>
+      <version>${restlet.version}</version>
     </dependency>
     <dependency>
       <groupId>org.restlet.jse</groupId>
       <artifactId>org.restlet.ext.xml</artifactId>
-      <version>2.0.7</version>
+      <version>${restlet.version}</version>
     </dependency>
     <dependency>
       <groupId>org.restlet.jse</groupId>
       <artifactId>org.restlet.ext.httpclient</artifactId>
-      <version>2.0.7</version>
+      <version>${restlet.version}</version>
       <scope>runtime</scope>
     </dependency>
   </dependencies>