read 'twenty second' as 22nd, not twenty seconds - #1261

'second' after any cardinal became a unit:

nlp('he finished forty-second').numbers().get()  // [40]
// with compromise-dates, 'may twenty-second' is may 20th
const doc = nlp('22')
doc.numbers().toText().toOrdinal()               // 'twenty second'
nlp(doc.text()).numbers().get()                  // [20]

After a tens word a duration would be 'seconds', and 'a twenty second delay' already reads as 22 through the _ #NN rule, so the left-right model now tags it as an ordinal. 'twenty seconds', 'one second' and '30 second' stay units. Tests added to units.test.js and to the dates plugin's sentences test; they fail on dev and pass with the change. The full suite and the plugin suites pass.

I used Claude Code to write this change.