chore: Add another package to changeset

Co-authored-by: Camila Belo <camilaibs@gmail.com>
Signed-off-by: Johan Haals <johan.haals@gmail.com>

.changeset/four-singers-fetch.md

@@ -4,6 +4,7 @@
 '@backstage/plugin-kubernetes-backend': patch
 '@backstage/plugin-scaffolder-backend': patch
 '@backstage/plugin-proxy-backend': patch
+'@backstage/backend-dynamic-feature-service': patch
 ---
 
 Update internal imports