aktualizr: fix build error 'uint8_t' does not name a type [V2]

[DengkeDu]

My environment:
meta-updater: master branch [c10f9f]
yocto poky: master branch [303421]
ARCH: arm64

When I take :
bitbake aktualizr

Output error said :
uint8_t does not name a type

Add the header file cstdint to asn1-cer.h to fix it.

[pattivacek]

Hello, just FYI for future reference, you don't need to close the MR and create a new one every time to just make a new change. In fact, it's much easier to follow the history if you continue to reuse the same one and just force push to the same branch.

[DengkeDu]

Hello, just FYI for future reference, you don't need to close the MR and create a new one every time to just make a new change. In fact, it's much easier to follow the history if you continue to reuse the same one and just force push to the same branch.

Thanks for advice : force push, I will follow it future.

[pattivacek]

Okay, looks good, thanks! The shellcheck complaint is fixed by my MR so it's not a blocker.