GH-961 - Upgrade to Structurizr 3.1.

Author: odrotbohm

pom.xml

@@ -47,6 +47,7 @@
 		<spring-framework.version>6.2.0</spring-framework.version> <!-- For Javadoc links only -->
 		<spring-cloud-aws-bom.version>3.1.1</spring-cloud-aws-bom.version>
 		<testcontainers.version>1.17.6</testcontainers.version>
+		<structurizr.version>3.1.0</structurizr.version>
 
 	</properties>
 

spring-modulith-docs/pom.xml

@@ -26,13 +26,13 @@
 		<dependency>
 			<groupId>com.structurizr</groupId>
 			<artifactId>structurizr-core</artifactId>
-			<version>1.29.0</version>
+			<version>${structurizr.version}</version>
 		</dependency>
 
 		<dependency>
 			<groupId>com.structurizr</groupId>
 			<artifactId>structurizr-export</artifactId>
-			<version>1.19.0</version>
+			<version>${structurizr.version}</version>
 		</dependency>
 
 		<dependency>