Ploomber

* Suppressing "black is not installed" message ([831](https://github.com/ploomber/ploomber/issues/831))

* Better error message in `ploomber cloud build` when pipeline is up-to-date ([815](https://github.com/ploomber/ploomber/issues/815))

* Error message when `env.yml` found instead of `env.yaml` ([829](https://github.com/ploomber/ploomber/issues/829))

* Fixes jinja extractor when upstream had nested getitem ([859](https://github.com/ploomber/ploomber/issues/859))

* Fixes notebook loading on Windows when UTF-8 is not the default encoding ([870](https://github.com/ploomber/ploomber/issues/870))

* Remove extraneous output in `ploomber task` tracebacks ([828]https://github.com/ploomber/ploomber/issues/828)

* `setup.cfg` allows to switch default entry point
* Generate multiple notebook products from a single task ([708](https://github.com/ploomber/ploomber/issues/708))
* `NotebookRunner` uploads partially executed notebook if it fails and a client is configured

* Adds support for choosing environment in `cloud.yaml`

* Fixes error when running `python -m ploomber.onboard` on Linux
* Moving email prompt to onboarding tutorial ([800](https://github.com/ploomber/ploomber/issues/800))

* Adds onboarding command: `python -m ploomber.onboard`
* Updating `pipeline.yaml` if `ploomnber nb --format {fmt}` command changes extensions ([755](https://github.com/ploomber/ploomber/issues/755))

* Adds documentation for `pipeline.yaml` `meta` section
* Adds many inline examples
* Improved docs for `pipeline.yaml` `grid`
* `ploomber task` prints a confirmation message upon successful execution
* `DAG.close_clients()` only calls `.close()` on each client once
* Fixes `dag.plot()` error when dag needs rendering