GLES3/gl3.h: No such file or directory (Herelink Qgroundcontrol)

Hi all!

Unfortunately I am am not able to build the code for Herelink Qgroundcontrol, I get the error: GLES3/gl3.h: No such file or directory
Code is taken from here: GitHub - CubePilot/qgroundcontrol-herelink
branch: herelink-v4.0.8

My setup:
Ubuntu 20.04.5 LTS
QTCreator 8.0.1
QT 5.11.0
Androd NDK r10e
Android QT 5.11.0 Clang x86

Please check the attached screenshots.
Thanks a lot!