[samuel-williams-shopify]

Summary

• only print the validate task fallback summary when no reports are configured
• delegate validation output to configured reports when present
• add regression coverage for both validation output paths
• add an Unreleased note

Testing

• bundle exec sus test/covered/validate.rb
• bundle exec sus
• bundle exec rubocop -A
• COVERAGE=PartialSummary bundle exec bake covered:validate --paths .covered.db ;