Update dependency com.structurizr:structurizr-core to v1.26.1

Author: renovate[bot]

build.gradle.kts

@@ -20,7 +20,7 @@ dependencies {
 
     implementation("org.eclipse.jgit:org.eclipse.jgit:6.6.0.202305301015-r")
 
-    implementation("com.structurizr:structurizr-core:1.24.1")
+    implementation("com.structurizr:structurizr-core:1.26.1")
     implementation("com.structurizr:structurizr-dsl:1.32.0")
     implementation("com.structurizr:structurizr-export:1.15.0")