Hi George
Sounds like a dry bottom ball joint. If the bottom ball joint rubber bellow has split this will lead to a loss of grease over time/or old ball joint grease has degraded.
With the car stationary, place both hands flat on the top of the front wing and bounce the wing firmly in a downwards direction a few times. If you hear the squeak, the most likely culprit is the bottom ball joint. To make double sure, Jack up the car, turn the wheel outwards to gain access to the bottom ball joint, you can do a visual check of the rubber bellow whilst your in the vicinity. If the bellow is still intact, gently lift up the bellow (without allowing it to come adrift completely) and spray wd40 under the rubber using the straw provided to get right under the rubber. Take the car for a spin, if the noise goes, you will know it is the ball joint. Another tell tale sign it is the ball joint: it often becomes apparent during a long dry spell, the noise can disappear when driving in wet conditions.
My suggestion is for diagnosis/a temporary solution, long term, I would advise changing the ball joint.