ekf2_replay: fix double/float conversion compile warning
ekf2_replay: fix double/float conversion compile warning

acfloria/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,PX4/Firmware,krbeverx/Firmware,dagar/Firmware,krbeverx/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,mcgill-robotics/Firmware,PX4/Firmware,krbeverx/Firmware,PX4/Firmware,dagar/Firmware,Aerotenna/Firmware,krbeverx/Firmware,mcgill-robotics/Firmware,PX4/Firmware,acfloria/Firmware,krbeverx/Firmware,jlecoeur/Firmware,jlecoeur/Firmware,dagar/Firmware,acfloria/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,Aerotenna/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,acfloria/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,dagar/Firmware,jlecoeur/Firmware,PX4/Firmware,Aerotenna/Firmware,dagar/Firmware,jlecoeur/Firmware,PX4/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,dagar/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,krbeverx/Firmware,jlecoeur/Firmware