Add changelog entry

Author: solrbot

changelog/unreleased/PR#4092-update-bytebuddy.yml

@@ -0,0 +1,7 @@
+title: Update bytebuddy to v1.18.4
+type: dependency_update
+authors:
+- name: solrbot
+links:
+- name: PR#4092
+  url: https://github.com/apache/solr/pull/4092