Upgrade ITU library to version 1.8 (#929)

Co-authored-by: Morten Haraldsen <[email protected]>

Author: ethlo

pom.xml

@@ -72,7 +72,7 @@
     <java.version>1.8</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <version.hamcrest>2.2</version.hamcrest>
-    <version.itu>1.7.0</version.itu>
+    <version.itu>1.8.0</version.itu>
     <version.jackson>2.15.3</version.jackson>
     <version.joni>2.1.41</version.joni>
     <version.junit>5.9.2</version.junit>