[Proposal]: Add head(), last() and tail() methods to Rows

[norberttech]

Describe the Proposal

src/core/etl/src/Flow/ETL/Rows.php represents strongly types Rows that are used by Flow to carry and process data.

We need to add two missing methods allowing to access the end of Rows, head, last and tail.

Head - return number of rows from the beginning
Last - just return the last row
Tail - return number of rows from the end

API Adjustments

• Rows::last() : ?Row
• Rows::tail(int $count) : Rows
• Rows::head(int $count) : Rows

Are you intenting to also work on proposed change?

Yes

Are you interested in sponsoring this change?

None

Integration & Dependencies

No response