chore: prepare release v0.19.0 Pastel de nata (#4483)

CHANGELOG.md

@@ -29,6 +29,21 @@
 
 ### Added
 
+### Changed
+
+### Removed
+
+### Fixed
+
+## Forest 0.19.0 "Pastel de nata"
+
+This is a mandatory release for all calibration network node operators. It
+includes migration logic for the NV23 _Waffle_ network upgrade. It also includes
+a number of new RPC methods, fixes to existing ones, and other improvements,
+most notably, garbage collection fix.
+
+### Added
+
 - [#4473](https://github.com/ChainSafe/forest/pull/4473) Add support for NV23
   _Waffle_ network upgrade (FIP-0085, FIP-0091, v14 actors).
 
@@ -65,8 +80,6 @@
 - [#4444](https://github.com/ChainSafe/forest/issues/4444) Update
   `Filecoin.StateWaitMsg` RPC method to be API-V1-compatible
 
-### Changed
-
 ### Removed
 
 - [#4358](https://github.com/ChainSafe/forest/pull/4358) Remove the