Hi. That's bacterial leaf spot.
What you can do right now? First thing is to avoid wetting the plants to stop the spread of the disease. Second thing, destroy all cuttings from those plants, and when you'll pull them from the ground, do exactly the same.
Now the part nobody likes to hear: neem oil = snake oil. Neem is just a modestly effective insecticide: in spite of what many sellers claim it won't affect fungi and bacteria. Right now you can manage the disease with a copper-based fungicide (IE Bordeaux mixture), which is still an extremely effective fungicide, but don't expect miracles. It will slow the spread of the disease and allow the plants to finish their productive cycle.
Unaffected plants must be treated with copper every fortnight as a preventive measure, not just against leaf spot but a host of other diseases such as Early blight: this should be started while they are still being hardened and continued until the final harvest.
