fix: Fix to display column statics

[bogo96]

Signed-off-by: hyein bogo96@kaist.ac.kr

Summary of Changes

• fix to display column statics datails.

related issue: amundsen-io/amundsen#814

Tests

• test with sample data(databuilder/example/scripts/sample_data_loader.py
  

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[dikshathakur3119]

LGTM