Yes, they’ve been replaced with update entities. You can see one “Firmware Update” at the top of your screenshot.click on that, then select Advanced Settings then chose enabled. After about 30 seconds it’ll be available. You can then delete the old “OTA…” ones.
This is in-fact not quite correct. Both entities; firmware_update and OTA_update are deprecated (and can be deleted). They have been replaced with update.entity_id_firmware_update which is one of the hidden entities in the top pane now shown with a Shelly icon. Once enabled, HA will report the updates for Shelly devices in the settings menu like other HA add-on updates.