cubicweb #5012581 missing generated message in i18n catalogs [validation pending]

the message generated by AddNewAction isn't generated at all by the i18ncube command, resulting on untranslated string in the UI.

prioritynormal
typebug
done in3.19.10
load1.000
load left0.000
closed by#75cd7df5c32e [i18n generation] add missing 'add a EntityType' message to generated catalogs. Closes #5012581
patch[i18n] Update translations [applied][i18n generation] add missing 'add a EntityType' message to generated catalogs. Closes #5012581 [applied]