Bump github.com/coredns/coredns from 1.6.7 to 1.8.1

[dependabot]

Bumps github.com/coredns/coredns from 1.6.7 to 1.8.1.

Commits

• 95622f4 release (#4414)
• 0a398f2 Remove draft draft from notes, and prepare to release (#4413)
• 66fcaae Fix some typos (#4412)
• a10eb88 Update 1.8.1 release note, adding PR 4387 and 4380 notes (#4410)
• 34dbf1e auto go mod tidy
• 28bddcc build(deps): bump k8s.io/client-go from 0.20.1 to 0.20.2 (#4404)
• a52095c auto go mod tidy
• f476f48 build(deps): bump github.com/aws/aws-sdk-go from 1.36.23 to 1.36.28 (#4403)
• b75b316 auto go mod tidy
• 80fce45 build(deps): bump k8s.io/api from 0.20.1 to 0.20.2 (#4400)
• Additional commits viewable in compare view

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[dependabot]

Dependabot tried to add @mangelajo and @tpantelis as reviewers to this PR, but received the following error from GitHub:

POST https://api.github.com/repos/tpantelis/lighthouse/pulls/4/requested_reviewers: 422 - Reviews may only be requested from collaborators. One or more of the users or teams you specified is not a collaborator of the tpantelis/lighthouse repository. // See: https://docs.github.com/rest/reference/pulls#request-reviewers-for-a-pull-request

[dependabot]

A newer version of github.com/coredns/coredns exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.