failed tests reporter

A little CLI that runs in CI to find the failed tests in the JUnit reports, then create/update github issues for each failure.

Test this script locally

To fetch some JUnit reports from a recent build on CI, visit its Google Cloud Storage Upload Report and execute the following in the JS Console:

copy(`wget -x -nH --cut-dirs 5 -P "target/downloaded_junit" "${Array.from($$('a[href$=".xml"]')).filter(a => a.innerText === 'Download').map(a => a.href.replace('https://storage.cloud.google.com/', 'https://storage.googleapis.com/')).join('" "')}"`)

This copies a script to download the reports, which you should execute in the root of the Opensearch Dashboards repository.

Next, run the CLI in --no-github-update mode so that it doesn't actually communicate with Github and --no-report-update to prevent the script from mutating the reports on disk and instead log the updated report.

node scripts/report_failed_tests.js --verbose --no-github-update --no-report-update target/downloaded_junit/**/*.xml

Unless you specify the GITHUB_TOKEN environment variable requests to read existing issues will use anonymous access which is limited to 60 requests per hour.