Update changelog entry

Author: solrbot

changelog/unreleased/PR#4408-update-com-github-ben-manes-caffeine-caffeine.yml

@@ -0,0 +1,7 @@
+title: Update com.github.ben-manes.caffeine:caffeine to v3.2.4
+type: dependency_update
+authors:
+- name: solrbot
+links:
+- name: PR#4408
+  url: https://github.com/apache/solr/pull/4408