Install Unity Hub from Unity Hub Debian repository

[bkslasher]

Changes

• Install Unity Hub from Unity Hub Debian repository. This installs Unity Hub 3.0. Current implementation installs Unity Hub 2.x.
  https://docs.unity3d.com/hub/manual/InstallHub.html#install-hub-linux

Checklist

• Read the contribution guide and accept the code of conduct
• Readme (not needed)

[github-actions]

[webbertakken]

Great! I think this will come in quite useful.

Two points of concern.

• Will this automatically update to the next major version as well? We should probably not do that without another PR.
• Some android tests are failing with an error that I don't think we've seen before.

[bkslasher]

• Will this automatically update to the next major version as well? We should probably not do that without another PR.

A required version can be specified. For example: apt-get install unityhub=3.0.0. I can add it as argument to Dockerfile.

[webbertakken]

Yes that sounds like a good idea. And we can set the default value of the argument to the version number that's currently latest stable.

[webbertakken]

FYI, I cancelled the last 2 workflows, so that the last one can run.

[webbertakken]

I found two new error cases after digging a bit in the logs.

One of the android builds

Unable to list target platforms. Please make sure the android sdk path is correct. 
Error:Invalid command android

And 7 errors in one of the Mac OS builds, that I do not dare quoting because there's a lot that looks wrong but might be fine. Some of which is that it's referring to the "buildslave" from someone at Unity Technologies and other errors.

https://github.com/game-ci/docker/runs/4809269559?check_suite_focus=true

Very cryptic as always, but I'm afraid we'll have to fix all issues (except build cancelled which happens once every 100 jobs) before merging this.

[bkslasher]

And 7 errors in one of the Mac OS builds, that I do not dare quoting because there's a lot that looks wrong but might be fine. Some of which is that it's referring to the "buildslave" from someone at Unity Technologies and other errors.

https://github.com/game-ci/docker/runs/4809269559?check_suite_focus=true

Very cryptic as always, but I'm afraid we'll have to fix all issues (except build cancelled which happens once every 100 jobs) before merging this.

This is the relevant part:

The properties of source file /opt/unity/Editor/Data/PlaybackEngines/MacStandaloneSupport/Variations/macos_x64ARM64_player_nondevelopment_mono/UnityPlayer.app/Contents/Frameworks/libmonobdwgc-2.0.dylib could not be retrieved: No such file or directory
[ 77/330    0s] CopyFiles /github/workspace/build/StandaloneOSX/StandaloneOSX.app/Contents/Frameworks/libMonoPosixHelper.dylib
##### ExitCode
-1
##### Output
The properties of source file /opt/unity/Editor/Data/PlaybackEngines/MacStandaloneSupport/Variations/macos_x64ARM64_player_nondevelopment_mono/UnityPlayer.app/Contents/Frameworks/libMonoPosixHelper.dylib could not be retrieved: No such file or directory
[ 78/330    0s] CopyFiles /github/workspace/build/StandaloneOSX/StandaloneOSX.app/Contents/Resources/unity default resources
##### ExitCode
-1
##### Output
The properties of source file /opt/unity/Editor/Data/PlaybackEngines/MacStandaloneSupport/Variations/macos_x64ARM64_player_nondevelopment_mono/UnityPlayer.app/Contents/Resources/unity default resources could not be retrieved: No such file or directory
[118/330    0s] CopyFiles /github/workspace/build/StandaloneOSX/StandaloneOSX.app/Contents/Frameworks/libmono-native.dylib
##### ExitCode
-1
##### Output
The properties of source file /opt/unity/Editor/Data/PlaybackEngines/MacStandaloneSupport/Variations/macos_x64ARM64_player_nondevelopment_mono/UnityPlayer.app/Contents/Frameworks/libmono-native.dylib could not be retrieved: No such file or directory
[231/330    0s] MacOSCodeSignDylibCopy /github/workspace/build/StandaloneOSX/StandaloneOSX.app/Contents/Frameworks/UnityPlayer.dylib```

[bkslasher]

The mac-mono faillure is seemingly unrelated. It fails for this other PR too:
https://github.com/game-ci/docker/actions/runs/1632058585

[bkslasher]

Android issues are resolved. Looks execute permissions were not properly set for SDK, NDK, Java.

[webbertakken]

@bkslasher it looks like the android issues are in fact not solved. All builds are failing on android build target.

See current builds based on 0.16.0 https://game.ci/docs/docker/versions

Any ideas?

Edit: Looking at this closer, it seems to be related to disk space. Apparently Android builds are running out of space. I'll check if I can mitigate this, so that the builds succeed and so that we can compare the size of the images between 0.15 and 0.16.0.

[webbertakken]

Should we also restore this line in #139 ?