Update dependency com.itextpdf:kernel to v7.2.5

Author: renovate[bot]

pom.xml

@@ -46,7 +46,7 @@
   <dependency>
     <groupId>com.itextpdf</groupId>
     <artifactId>kernel</artifactId>
-    <version>7.0.1</version>
+    <version>7.2.5</version>
     <!-- kernel depends on io -->
   </dependency>