Scriptexecute.img too old

[knachte]

I'm running into problems because the executables in scriptexecute.img are too old. I use resize2fs in the post install scripts to resize the partition, but i started noticing today that it no longer works. I get:

resize2fs 1.45.4 (23-Sep-2019)
resize2fs: Filesystem has unsupported feature(s) (/dev/mmcblk0p3)

I have hooked up the device with rpiboot to another device and ran it with the newer version of resize2fs and there it works without problems.

My question:
Could a newer version of the scriptexecute.img be produced, or is source available somewhere so that we could do this ourselves?
Worst case, i could probably mount the image with chroot and update the file, but this might lead to dependency errors?

[knachte]

i found raspberrypi/scriptexecutor#1 but can't get it to compile due to compilation errors.