Look at
How to Skip Pro trial mode in SketchUp Make
It explains how to sidestep the trial: you could write a simple batch file to run the main installer [as admin] then immediately tweak the file in ProgramData to skip the trial… If you are manually installing [run as admin] and then edit the ProgramData file… run SketchUp once and accept the trial has ended - thereafter you should have a Make only version - no trial…