All EVgo locations use standard charging cables that reach most charging ports for a vehicle parked in the charger's designated parking spot. If the cable doesn't reach your port as you originally parked, you can try turning the vehicle around based on the location of your vehicle's charging port.
If you had to park outside of the designated charging spot and the cable doesn't reach, then you will need to wait for the spot to become available or find a charger with an available designated parking spot.