Added java-diff-utils to pom.xml

This was accidentally missing from commit cb6fc46.

pom.xml

@@ -26,6 +26,7 @@
 		<swagger-ui.version>3.23.8</swagger-ui.version>
 		<package-info-maven-plugin.version>1.1.0</package-info-maven-plugin.version>
 		<jsoup.version>1.13.1</jsoup.version>
+		<java-diff-utils.version>4.10</java-diff-utils.version>
 	</properties>
 	<build>
 		<sourceDirectory>src/main/java</sourceDirectory>
@@ -660,5 +661,10 @@
 			<artifactId>jsoup</artifactId>
 			<version>${jsoup.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>io.github.java-diff-utils</groupId>
+			<artifactId>java-diff-utils</artifactId>
+			<version>${java-diff-utils.version}</version>
+		</dependency>
 	</dependencies>
 </project>