[AUTOMATIC] Release/18.31.0 (#1824)

**This is an automatic release.**

## RevenueCat SDK
### 📦 Dependency Updates
* [AUTOMATIC] iOS 5.83.2 => 5.84.0 Android 10.16.2 => 10.17.0 (#1823)
via RevenueCat Git Bot (@RCGitBot)
* [AUTOMATIC] JS 1.52.1 => 1.52.3 (#1820) via RevenueCat Git Bot
(@RCGitBot)
* [RENOVATE] Update dependency revenuecat to v4.6.0 (#1819) via
RevenueCat Git Bot (@RCGitBot)

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Version and changelog-only release with upstream SDK dependency bumps;
no application logic changes in this PR.
> 
> **Overview**
> **Automatic release** that publishes **Purchases Hybrid Common
18.31.0** by aligning version metadata across CocoaPods
(`PurchasesHybridCommon` / `PurchasesHybridCommonUI`), Android
`VERSION_NAME`, iOS plists and `Constants.hybridCommonVersion`, and the
`@revenuecat/purchases-js-hybrid-mappings` and
`@revenuecat/purchases-typescript-internal` packages.
> 
> The release notes for **18.31.0** record **dependency-only** updates:
native iOS **5.83.2 → 5.84.0**, Android **10.16.2 → 10.17.0**,
purchases-js **1.52.1 → 1.52.3**, and Renovate bump of **revenuecat** to
**v4.6.0**. There is no hybrid bridge or API logic change in this
diff—only versioning and changelog entries.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
2b880c2bc583af88f95963840664eda33d34fe78. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->