release: 81.0.0 (#403)

# Description

This is the release candidate for version 81.0.0. See the CHANGELOGs for
more details.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Release 81.0.0 bumping `@metamask/keyring-api` to 21.3.0 with initial
`Keyringv2`, new Tron signing methods, and related deprecations.
> 
> - **Release/versioning**
>   - Bump monorepo `version` to `81.0.0` in `package.json`.
> - Bump `@metamask/keyring-api` to `21.3.0` in
`packages/keyring-api/package.json`.
> - **Keyring API (21.3.0)**
>   - Added initial `Keyringv2` interface.
>   - Added Tron methods: `signMessage`, `signTransaction`.
>   - Deprecated Tron methods: `signMessageV2`, `verifyMessageV2`.
>   - Updated `CHANGELOG.md` entries and comparison links.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
d0eb388. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: ccharly

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@metamask/accounts-monorepo",
-  "version": "80.0.0",
+  "version": "81.0.0",
   "private": true,
   "description": "Monorepo for MetaMask accounts related packages",
   "repository": {

packages/keyring-api/CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [21.3.0]
+
+### Added
+
+- Add initial `Keyringv2` interface ([#397](https://github.com/MetaMask/accounts/pull/397))
+  - This is an on-going work and should not be used for now.
+- Add new Tron methods `signMessage` and `signTransaction` ([#401](https://github.com/MetaMask/accounts/pull/401))
+
+### Changed
+
+- Deprecate Tron methods `signMessageV2` and `verifyMessageV2` ([#401](https://github.com/MetaMask/accounts/pull/401))
+
 ## [21.2.0]
 
 ### Added
@@ -643,7 +655,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - SnapController keyring client. It is intended to be used by MetaMask to talk to the snap.
 - Helper functions to create keyring handler in the snap.
 
-[Unreleased]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]
+[Unreleased]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]
+[21.3.0]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]...@metamask/[email protected]
 [21.2.0]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]...@metamask/[email protected]
 [21.1.0]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]...@metamask/[email protected]
 [21.0.0]: https://github.com/MetaMask/accounts/compare/@metamask/[email protected]...@metamask/[email protected]

packages/keyring-api/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@metamask/keyring-api",
-  "version": "21.2.0",
+  "version": "21.3.0",
   "description": "MetaMask Keyring API",
   "keywords": [
     "metamask",