JCR-5144: Update to jacoco version 0.8.13 (#238)

Author: reschke

jackrabbit-parent/pom.xml

@@ -260,7 +260,7 @@
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.12</version>
+        <version>0.8.13</version>
         <executions>
           <execution>
             <id>pre-unit-test</id>