[AUTOMATIC] iOS 5.86.0 => 5.87.0 Android 10.18.1 => 10.19.0 JS 1.53.1 => 1.54.0 (#1847)

[AUTOMATIC] iOS 5.86.0 => 5.87.0 Android 10.18.1 => 10.19.0 JS 1.53.1 =>
1.54.0

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---

> [!NOTE]
> **Low Risk**
> Version-pin and lockfile updates only; no application logic changes,
though downstream behavior follows whatever changed in the bumped native
SDKs.
> 
> **Overview**
> This automatic PR **aligns hybrid-common** with newer RevenueCat
native SDK releases by bumping pinned dependency versions only—no hybrid
mapping or API source changes in the diff.
> 
> **iOS** moves `RevenueCat` / `RevenueCatUI` from **5.86.0** to
**5.87.0** across Swift Package Manager (`Package.swift`,
`Package.resolved`), CocoaPods (`PurchasesHybridCommon.podspec`,
`PurchasesHybridCommonUI.podspec`), and the iOS `Podfile` /
`Podfile.lock`.
> 
> **Android** updates the shared `purchases` version in
`android/gradle/libs.versions.toml` from **10.18.1** to **10.19.0**
(affects `purchases`, UI, and store modules that reference that
catalog).
> 
> **Web/JS** bumps `@revenuecat/purchases-js` in
`purchases-js-hybrid-mappings` from **1.53.1** to **1.54.0**, with the
matching `yarn.lock` refresh.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
d2801b6912fc7d98071355b1b8c3de7dac58fd8a. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->