Update dependency jenkins-core-lts to v2.516.3

Author: renovate[bot]

acceptance-tests/pom.xml

@@ -111,7 +111,7 @@
         <profile>
             <id>jenkinsLts</id>
             <properties>
-                <jenkins.version>2.516.2</jenkins.version><!--RENOVATE-LTS-->
+                <jenkins.version>2.516.3</jenkins.version><!--RENOVATE-LTS-->
                 <skipTests>false</skipTests>
             </properties>
         </profile>