Update helium-swift SDK to 4.4.6

[github-actions]

Automated update of helium-swift SDK dependency to version 4.4.6.

Changes:

• Updated podspec dependency version
• Bumped package.json version (patch increment)

This PR was automatically created by the iOS SDK release workflow.

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Note

Low Risk
Low risk: this is a dependency version bump (Helium iOS pod) plus a patch version increment for the React Native package, with no functional code changes in this repo.

Overview
Updates the iOS CocoaPods dependency in PaywallSdkReactNative.podspec to require Helium 4.4.6 (from 4.3.0).

Bumps the npm package version in package.json from 3.0.23 to 3.0.24 to publish the dependency update.

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