Logging output is very frequent / verbose during normal usage

[filipj8]

The DAGSpecInvalidError is very verbose and logs an error message every ~10s through normal usage:

2021-07-29 02:04:59 : [W 2021-07-29 21:04:59.339 ServerApp] [Ploomber] Skipping DAG initialization since there isn't a project root in the current or parent directories. Error message: Failed to determine project root. Looked recursively for a setup.py or pipeline.yaml in parent folders but none of those files exist
2021-07-29 02:05:09 : [W 2021-07-29 21:05:09.910 ServerApp] [Ploomber] Skipping DAG initialization since there isn't a project root in the current or parent directories. Error message: Failed to determine project root. Looked recursively for a setup.py or pipeline.yaml in parent folders but none of those files exist
2021-07-29 02:05:20 : [W 2021-07-29 21:05:20.061 ServerApp] [Ploomber] Skipping DAG initialization since there isn't a project root in the current or parent directories. Error message: Failed to determine project root. Looked recursively for a setup.py or pipeline.yaml in parent folders but none of those files exist

This is seen on the https://github.com/ploomber/ploomber@jupyter branch.