dependabot.yml config leaves custom pytest-plugins not updated

[dtrifiro]

Since we currently have the following setup in depdendabot.yml

https://github.com/iterative/py-template/blob/75abeda8b405100ca48820bb33191a85de9f446f/%7B%7Bcookiecutter.project_name%7D%7D/.github/dependabot.yml#L11-L15

this results in pytest plugins added in repos generated from this template not updated by dependabot.

[skshetry]

Closed by bc3f092f37f3c879ab079767c55700b963145f59.