Fix benchmark scripts by using the datagram builder class

[hahmed]

✅ What

Benchmark scripts were broken when running ruby test/benchmark/tags.rb

Fixed the liner issue with rubocop with multi line blocks, by moving to one line.

🤔 Why

👩🔬 How to validate

run ruby test/benchmark/tags.rb

Checklist

• I documented the changes in the CHANGELOG file.
• This change is not user-facing and does not require a CHANGELOG update.