Bump io.jenkins.tools.incrementals:git-changelist-maven-extension from 1.7 to 1.8 (#257)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.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>