psbt: Indicate which psbt inputs were signed

docs/release-notes/release-notes-0.16.0.md

@@ -11,6 +11,11 @@ transaction](https://github.com/lightningnetwork/lnd/pull/6730).
   allow specifying a root key for macaroons during wallet init rather than
   having lnd randomly generate one for you.
 
+* [A new `SignedInputs`](https://github.com/lightningnetwork/lnd/pull/6771) 
+  field is added to `SignPsbtResponse` that returns the indices of inputs 
+  that were signed by our wallet. Prior to this change `SignPsbt` didn't 
+  indicate whether the Psbt held any inputs for our wallet to sign.
+
 ## Misc
 * Warning messages from peers are now recognized and
   [logged](https://github.com/lightningnetwork/lnd/pull/6546) by lnd.
@@ -39,5 +44,6 @@ transaction](https://github.com/lightningnetwork/lnd/pull/6730).
 * Daniel McNally
 * Elle Mouton
 * ErikEk
+* hieblmi
 * Olaoluwa Osuntokun
 * Oliver Gugger