Fix reporting for teardown errors

[ace2016]

Closes #1004.

Summary

A test whose call phase passed but whose teardown failed was previously reported as both PASSED and ERROR. This change defers successful call reporting until teardown completes. If teardown fails, only the error is reported. Call failures followed by teardown errors remain separately reported.

The internal setup, call, and teardown reports remain unchanged for plugins.

Testing

• Focused teardown-reporting tests: 5 passed
• Broader terminal tests: 219 passed, 2 skipped, 8 deselected
• python -m ruff check src/_pytest/terminal.py testing/test_terminal.py
• python -m ruff format --check src/_pytest/terminal.py testing/test_terminal.py
• git diff --check

Checklist

• Include documentation when adding new features.
• Include new tests or update existing tests when applicable.
• Allow maintainers to push and squash when merging my commits.
• Add text like closes #XYZW to the PR description and/or commits.
• If AI agents were used, they are credited in Co-authored-by commit trailers.
• Create a new changelog file in the changelog directory.
• Add yourself to AUTHORS in alphabetical order.