update github workflows

[khassel]

to call sudo apt-get update before sudo apt-get install

I had problems running the tests on my fork, while running the apt-get install command in automated tests workflow I got

E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/m/mesa/libegl-mesa0_24.0.9-0ubuntu0.3_amd64.deb  404  Not Found [IP: 52.147.219.192 80]

Found a similar Issue with a solution which is to run sudo apt-get update before.

[sdetweil]

Yes, that's normal practice

[khassel]

@sdetweil then merge please ...