I don't think they can. The legislation explicitly mandates usb-c as the device port. Sure, Apple can engineer their own proprietary-to-usbc adapter and ship it with their phones, but they will no longer be allowed to use a non-usbc port on the phone itself.

From https://www.europarl.europa.eu/RegData/etudes/BRIE/2021/6988... , page 6:

Device-side connector: the included devices would have to be equipped with a USB-C receptacle on the device side (as described in the European standard EN IEC 62680-1-3:2021) and, in cases of charging power lower than 60 watts, be rechargeable with cables that complied with the same standard

Then on page 8, the latest expansion of scope:

Included devices: a larger range of small and medium-sized devices with power delivery up to 100 watts would be included under the scope of the directive, including e-readers, low-powered laptops, keyboards, mice, earbuds, screens, printers, portable navigations, smartwatches, personal care devices and electronic toys

Note the personal care devices: looks like this is going to include electronic toothbrushes and electric razors.