chore: Remove macOS metadata from test data tarballs

[DrakeLin]

What changes are proposed in this pull request?

Remove AppleDouble files (._*, .__*) and macOS extended attributes from test data tarballs.

The macOS metadata was handled in two ways:

1. AppleDouble files (., .__) - Explicitly deleted:
   find "$name" -name '.' -delete
   find "$name" -name '.__' -delete

2. Extended attributes (LIBARCHIVE.xattr.*) - Automatically stripped:
   When extracting on Linux, the macOS extended attributes (stored in PAX headers) are ignored:
   tar: Ignoring unknown extended header keyword 'LIBARCHIVE.xattr.com.apple.provenance'
   tar: Ignoring unknown extended header keyword 'LIBARCHIVE.xattr.com.apple.quarantine'

This is what Claude code came up with:

  1. Identified affected files
  for f in *.tar.zst; do
    tar --zstd -tvf "$f" 2>&1 | grep -E '/\._|LIBARCHIVE\.xattr'
  done
  Found 25 tarballs containing macOS AppleDouble files (._*, .__*) and extended attributes.

  2. Cleaned each tarball
  for tarball in *.tar.zst; do
    name="${tarball%.tar.zst}"

    # Extract
    tar --zstd -xf "$tarball"

    # Remove AppleDouble files
    find "$name" -name '._*' -delete
    find "$name" -name '.__*' -delete

    # Recompress
    tar --zstd -cf "$tarball" "$name"

    # Cleanup
    rm -rf "$name"
  done

How was this change tested?

Tests pass and opening up a tarball now contains no artifacts

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.72%. Comparing base (c011911) to head (2b453ed).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1534   +/-   ##
=======================================
  Coverage   84.72%   84.72%           
=======================================
  Files         126      126           
  Lines       34222    34222           
  Branches    34222    34222           
=======================================
  Hits        28996    28996           
  Misses       3816     3816           
  Partials     1410     1410           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[nicklan]

thanks for doing this!

[zachschuermann]

thanks for the cleanup!