Tests of develop

No test report for develop yet.

Give a job in .flow/pipeline.kdl an artifact named junit holding a JUnit XML report, kept with when "always" so a failing run still sends it. For pytest:

job "test" {
    sandbox "python"
    exec "pytest" "--junitxml=/src/out/junit.xml"
    output {
        artifact "junit" {
            path "/src/out/junit.xml"
            when "always"
        }
    }
}

cargo-nextest (a junit profile), Jest's junit reporter and gotestsum write JUnit XML too.