dep: urfave/cli update

docs/release-notes/release-notes-0.15.1.md

@@ -10,6 +10,11 @@
 * [Add minor comment](https://github.com/lightningnetwork/lnd/pull/6559) on
   subscribe/cancel/lookup invoice parameter encoding.
 
+## Bug Fixes
+
+* [Update the urfave/cli package](https://github.com/lightningnetwork/lnd/pull/6682) because
+  of a flag parsing bug.
+
 # Contributors (Alphabetical Order)
 * Elle Mouton
 * ErikEk