Enable "errorlint" linter in golangci-lint

[tuminoid]

Enable "errorlint" linter in golangci-lint. Fix any warnings enabling it causes.

/area ci
/help
/triage accepted

[metal3-io-bot]

@tuminoid:
This request has been marked as needing help from a contributor.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-help command.

In response to this:

Enable "errorlint" linter in golangci-lint. Fix any warnings enabling it causes.

/area ci
/help
/triage accepted

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[metal3-io-bot]

@tuminoid: The label(s) area/ci cannot be applied, because the repository doesn't have them.

In response to this:

Enable "errorlint" linter in golangci-lint. Fix any warnings enabling it causes.

/area ci
/help
/triage accepted

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[metal3-io-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues will close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[tuminoid]

/remove-lifecycle stale