Add Junit test result output

[russcam]

This commit adds junit test result output on CI, and reports test results as a pull request check.

[roji]

I'm not specifically familiar with Junit or this plugin...

Just in case it's interesting/useful, on Npgsql we use GitHubActionsTestLogger (it's activated like this), which automatically posts a test summary to the Github Actions build summary (e.g. like this). It seems a bit lighter in that it doesn't require write permissions to the checks or an extra workflow step.

[russcam]

Just in case it's interesting/useful, on Npgsql we use GitHubActionsTestLogger (it's activated like this), which automatically posts a test summary to the Github Actions build summary (e.g. like this). It seems a bit lighter in that it doesn't require write permissions to the checks or an extra workflow step.

Nice! Can it also post the check to a PR from a fork? The JUnit report action is supposed to be able to do this, though I couldn't get the example to work

[roji]

I think this should work, yeah... Am currently traveling but will try to take a look later today/tomorrow if it's not working for you.