fix(metro-core): workflow build of metro plugins

[ryok90]

Description

Fix Metro E2E test failures in CI by adding build step for Metro packages and fixing package name mismatch.

Android Error: ERR_MODULE_NOT_FOUND - Missing dist/ folder in @module-federation/metro-plugin-rnef
iOS Error: rnef.config not found - Path mismatch between package name and directory

Changes:

• Added build step to android-e2e and ios-e2e actions to build Metro packages before running tests
• Renamed package from example-host to metro-example-host to match directory structure
• Updated workflow matrix to use metro-example-host
• Removed unnecessary build-metro dependency from e2e-metro job

Related Issue

Fixes failing CI:

• https://github.com/module-federation/core/actions/runs/18640445561/job/53138439700
• https://github.com/module-federation/core/actions/runs/18640445561/job/53138439786

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 51491fb

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[ryok90]

@2heal1 heey can you check this?
seems like the workflow was not working before.
it's pointing towards your branch
#4141

edit: still not working, putting it in draft