mention docker image registry in changelog

Signed-off-by: Justin Florentine <[email protected]>

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Requesting the Ethereum Node Record (ENR) to acquire the fork id from bonded peers is now enabled by default, so the following change has been made [#5628](https://github.com/hyperledger/besu/pull/5628):
 - `--Xfilter-on-enr-fork-id` has been removed. To disable the feature use `--filter-on-enr-fork-id=false`.
 - `--engine-jwt-enabled` has been removed. Use `--engine-jwt-disabled` instead. [#6491](https://github.com/hyperledger/besu/pull/6491)
+- Release docker images now provided at ghcr.io instead of dockerhub
 
 ### Deprecations
 - X_SNAP and X_CHECKPOINT are marked for deprecation and will be removed in 24.4.0 in favor of SNAP and CHECKPOINT [#6405](https://github.com/hyperledger/besu/pull/6405)