JCR-4692: Update to jacoco version 0.8.7

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/trunk@1889517 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/jackrabbit-parent/pom.xml b/jackrabbit-parent/pom.xml
index 67882bb..735c178 100644
--- a/jackrabbit-parent/pom.xml
+++ b/jackrabbit-parent/pom.xml
@@ -252,7 +252,7 @@
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.6</version>
+        <version>0.8.7</version>
         <executions>
           <execution>
             <id>pre-unit-test</id>