Merge pull request jenkinsci#261 from jenkinsci/dependabot/maven/io.jenkins.tools.incrementals-git-changelist-maven-extension-1.8

Bump io.jenkins.tools.incrementals:git-changelist-maven-extension from 1.7 to 1.8

Author: jglick

.mvn/extensions.xml

@@ -2,6 +2,6 @@
   <extension>
     <groupId>io.jenkins.tools.incrementals</groupId>
     <artifactId>git-changelist-maven-extension</artifactId>
-    <version>1.7</version>
+    <version>1.8</version>
   </extension>
 </extensions>