Go to P3D\Captain_Sim\navigation and open the runways.db file with Notepad. Press CTRL+F and search for LSGG. You should find the following:

LSGG;3.00;110.90;46.227842;12795;6.093956;04;046.0
LSGG;3.00;109.90;46.250361;12795;6.127006;22;226.0

Change the 109.90 to 108.70, the save (use CTRL+S , or  click on File > Save (DO NOT CLICK ON Save As...))

MAKE A BACKUP OF THE Runways.db BEFORE YOU MAKE ANY CHANGES!


RED = Frequency
BLUE = Runway Number
ORANGE = Runway Heading

Be carefull not to remove the semi-colon separating each seqment of the data.

Note. These might be a tad different due to the fact that I'm using Cycle 2003 (27/FEB/2020 - 26/MAR/2020) that would have been installed when I installed one of the Captain Sim products for P3Dv4/5, and I don't know which one it would have been.