[eas-cli] update deprecated posthog session replay package with new one

[metehandemir]

Why

eas integrations:posthog:connect currently installs the deprecated posthog-react-native-session-replay package.

As of posthog-react-native 4.47.0+, PostHog renamed this plugin to @posthog/react-native-plugin, which now provides both Session Replay and native error tracking. The old package is only intended for projects using versions of posthog-react-native earlier than 4.47.0.

This change updates the integration to install the new package for supported versions, aligning the generated project with the current PostHog documentation.

Fixes #4101

How

Updated the PostHog integration to use @posthog/react-native-plugin instead of posthog-react-native-session-replay.

The integration now follows the current PostHog package naming introduced in posthog-react-native 4.47.0+, avoiding installation of a deprecated dependency for new projects.

Test Plan

Verified the change by running:

eas integrations:posthog:connect

Before this change:

✔ Installed posthog-react-native-session-replay

After this change:

✔ Installed @posthog/react-native-plugin

Confirmed that the generated project installs the new plugin successfully and that the PostHog integration continues to configure correctly.

[github-actions]

Subscribed to pull request

File Patterns	Mentions
packages/eas-cli/**	@douglowder

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[gwdp]

Thanks for catching this @metehandemir 🙏 I verified the rename against PostHog's docs, and it's spot on: @posthog/react-native-plugin (≥2.0.1) is the renamed posthog-react-native-session-replay, which PostHog shipped in posthog-react-native 4.47.0 at the end of June.

One thing before it can be merged — it needs a CHANGELOG.md entry. Mind adding this under## main → ### 🐛 Bug fixes (or 🧹 Chores, either's fine)?

[metehandemir]

Done! I've added the CHANGELOG.md entry under 🐛 Bug fixes and pushed the update.
@gwdp

[gwdp]

Ty @metehandemir! Please, check CI failure. (Changelog check is expected to fail, nothing to act, just 'Test with Node')