This 1.21 release changes the lava backend XML-RPC
transport layer to use requests, also including a pre-defined
timeout. The release adds Celery plugin for Sentry users.
Complete list of changes going in:
* ci: add tests for LAVA backend call timeouts
* ci: lava: change XML-RPC transport to use requests
* frontent: build: include test jobs with no status in Test jobs tab
* settings: add CeleryIntegration to sentry