docs: add release notes

Author: ellemouton

docs/release-notes/release-notes-0.19.0.md

@@ -57,6 +57,7 @@
 * Use the new interfaces added for Gossip 1.75 throughout the codebase
     [1](https://github.com/lightningnetwork/lnd/pull/8252/).
     [2](https://github.com/lightningnetwork/lnd/pull/8253).
+    [3](https://github.com/lightningnetwork/lnd/pull/8254).
 
 ## Testing
 ## Database