Fixes

• [jest-config] Normalize reporters option defined in presets (#12769)
• [@jest/reporters] Fix trailing slash in matching coverageThreshold key (#12714)
• [jest-resolve] Fix (experimental) ESM module mocking for re-exports (#12766)
• [@jest/transform] Throw better error if an invalid return value if encountered (#12764)

Chore & Maintenance

• [docs] Fix typo in --shard CLI docs (#12761)

New Contributors

• @wespickett made their first contribution in #12714
• @helloitsjoe made their first contribution in #12761
• @maxdavidson made their first contribution in #12766

Full Changelog: v28.0.2...v28.0.3