JCR-5047: Update to jacoco version 0.8.12 (#174)

diff --git a/jackrabbit-parent/pom.xml b/jackrabbit-parent/pom.xml
index f472a8e..2bfaf2d 100644
--- a/jackrabbit-parent/pom.xml
+++ b/jackrabbit-parent/pom.xml
@@ -264,7 +264,7 @@
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>
-        <version>0.8.11</version>
+        <version>0.8.12</version>
         <executions>
           <execution>
             <id>pre-unit-test</id>