Release/640.0.0 (#6934)

## Explanation

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Release @metamask/[email protected]

## References

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## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [x] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [x] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/contributing.md#updating-changelogs),
highlighting breaking changes as necessary
- [x] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Release subscription-controller 2.1.0 (sync
getCryptoApproveTransactionParams, dep bump) and update monorepo version
to 640.0.0.
> 
> - **Release**: `@metamask/[email protected]`
>   - Changed: `getCryptoApproveTransactionParams` is now synchronous.
>   - Dependencies: bump `@metamask/base-controller` to `^8.4.2`.
>   - Docs: update changelog and comparison links.
> - **Monorepo**: bump root `version` to `640.0.0`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
710e6df. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: tuna1207

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@metamask/core-monorepo",
-  "version": "639.0.0",
+  "version": "640.0.0",
   "private": true,
   "description": "Monorepo for packages shared between MetaMask clients",
   "repository": {

packages/subscription-controller/CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.1.0]
+
 ### Changed
 
 - Make `getCryptoApproveTransactionParams` synchronous ([#6930](https://github.com/MetaMask/core/pull/6930))
@@ -107,7 +109,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Bump `@metamask/controller-utils` from `^11.12.0` to `^11.14.0` ([#6620](https://github.com/MetaMask/core/pull/6620), [#6629](https://github.com/MetaMask/core/pull/6629))
 - Bump `@metamask/utils` from `^11.4.2` to `^11.8.0` ([#6588](https://github.com/MetaMask/core/pull/6588))
 
-[Unreleased]: https://github.com/MetaMask/core/compare/@metamask/[email protected]
+[Unreleased]: https://github.com/MetaMask/core/compare/@metamask/[email protected]
+[2.1.0]: https://github.com/MetaMask/core/compare/@metamask/[email protected]...@metamask/[email protected]
 [2.0.0]: https://github.com/MetaMask/core/compare/@metamask/[email protected]...@metamask/[email protected]
 [1.1.0]: https://github.com/MetaMask/core/compare/@metamask/[email protected]...@metamask/[email protected]
 [1.0.1]: https://github.com/MetaMask/core/compare/@metamask/[email protected]...@metamask/[email protected]

packages/subscription-controller/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@metamask/subscription-controller",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "Handle user subscription",
   "keywords": [
     "MetaMask",