Update dependabot.yml

[github-actions[bot]]

:arrow_right: Go test coverage stayed the same at 87.7% compared to 5585f65bb6ad63a3901cdde0ac409d4f6eb27da5 No change in coverage for any package.

View coverage for all packages

```diff # Package Name | Coverage + github.com/metal3d/goreorder/ordering | 87.7% ```