Cut v0.6.1 release

[tnull]

We release v0.6.1, which features only minor adjustments in the bindings API.

[ldk-reviews-bot]

👋 Thanks for assigning @joostjager as a reviewer!
I'll wait for their review and will help manage the review process.
Once they submit their review, I'll check if a second reviewer would be helpful.

[tnull]

CI failure is unrelated #581.

[tnull]

Force-pushed minor fixup:

> git diff-tree -U2 a5af339d ae17fdcb
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 957ee157..fe613a07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,5 +4,5 @@ type in bindings.

 ## Feature and API updates
-- The `Bolt11Invoice::description` description method is now exposed as
+- The `Bolt11Invoice::description` method is now exposed as
   `Bolt11Invoice::invoice_description` in bindings, to avoid collisions with a
   Swift standard method of same name (#576)

[joostjager]

CI failure is unrelated #581.

Doesn't this need to be resolved first before being able to cut the release?

[tnull]

Doesn't this need to be resolved first before being able to cut the release?

No, as it's entirely unrelated.