Your .dependabot/config.yml contained invalid details

[dependabot-preview]

Dependabot encountered the following error when parsing your .dependabot/config.yml:

The property '#/update_configs/0/ignored_updates/0' contains additional properties ["dependency_name"] outside of the schema when none are allowed
The property '#/update_configs/0/ignored_updates/0/match' of type null did not match the following type: object. Is the following line indented correctly?

Please update the config file to conform with Dependabot's specification using our docs and online validator.

[dependabot-preview]

The config file is valid now, and Dependabot is set up.