fix: assert_arrays_eq macro reexports format function to hide itertools dep

[robert3005]

fix: #5544

Signed-off-by: Robert Kruszewski github@robertk.io

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.48%. Comparing base (c75c8a3) to head (ec42f02).
⚠️ Report is 4 commits behind head on develop.

Files with missing lines	Patch %	Lines
vortex-array/src/arrays/assertions.rs	0.00%	3 Missing ⚠️

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