[AUTOMATIC BUMP] Updates purchases-hybrid-common to 18.8.1

[RCGitBot]

This is an automatic bump.

Updates purchases-hybrid-common to 18.8.1

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Note

Medium Risk
Touches the in-app purchase native/JS stack end-to-end; behavior can differ between hybrid-common releases even though the diff is version-only.

Overview
This automatic bump replaces 18.15.1 with 18.8.1 for all purchases-hybrid-common–related artifacts across the monorepo.

iOS (CocoaPods): PurchasesHybridCommon in RNPurchases.podspec and PurchasesHybridCommonUI in RNPaywalls.podspec.

Android (Gradle): purchases-hybrid-common, purchases-hybrid-common-ui, and purchases-hybrid-common-store-galaxy in the core, UI, and Galaxy workspace modules.

JavaScript: Root package.json pins @revenuecat/purchases-js-hybrid-mappings and @revenuecat/purchases-typescript-internal; the UI and Store Galaxy packages pin purchases-typescript-internal. yarn.lock reflects the new versions, including @revenuecat/purchases-js moving from 1.42.4 to 1.41.1 via the hybrid mappings package.

There are no TypeScript or native bridge code changes—only version pins and the lockfile.

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