Squeak noise

2012 Tacoma 4x4 I had the brakes checked back in June 2022 due to noise and vibration pads were good the dealership turned rotors and adjusted and cleaned rear drums. Now when braking slow I can hear a squeak it doesn’t sound like a brake squeak but I’m not a mechanic. It’s a squeak that sounds like it’s rotating on the passenger side I can’t tell if it’s rear or front. What could it be? Wheel bearing, ball joint? Any thoughts or tests I could do?

 

Check the dust guards or some people call it the backing plates on the front rotors. See if one of them tin guards are rubbing up against the road or a little bit.