fix: fj-doc-mod-fop/pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-COMMONSIO-8161190

Author: snyk-bot

fj-doc-mod-fop/pom.xml

@@ -22,7 +22,7 @@
 	</licenses>
 
 	<properties>
-		<fop-version>2.10</fop-version>
+		<fop-version>2.11</fop-version>
 	</properties>
 
 	<build>