Hi
Agree with Mike-And-Jane0 that it's ok to use a phone camera to get your listing up & running. Be sure your cover photo is awesome and the next 4 photos should highlight best features/amenities of your property. Your cover photo is so important, as it's what a guest sees when scrolling thru properties when searching. Below is a good Airbnb help article to assist you in using your phone to get great photos.
https://www.airbnb.com/resources/hosting-homes/a/take-great-photos-of-your-space-on-your-phone-221
You can consider professional photos after your listing is up and running. I would suggest a photographer familiar with short-term rental photography (not a typical real estate photographer). Ask for examples of their work before deciding on a professional photographer.