chore(deps): update module github.com/sirupsen/logrus to v1.8.1

[nicosto]

This PR contains the following updates:

Package	Type	Update	Change
github.com/sirupsen/logrus	require	minor	v1.4.2 -> v1.8.1

---

Release Notes

sirupsen/logrus

v1.8.1

Compare Source

v1.8.0

Compare Source

Correct versioning number replacing v1.7.1

v1.7.1

Compare Source

Code quality:

• use go 1.15 in travis
• use magefile as task runner

Fixes:

• small fixes about new go 1.13 error formatting system
• Fix for long time race condiction with mutating data hooks

Features:

• build support for zos

v1.7.0

Compare Source

• a new buffer pool management API has been added
• a set of <LogLevel>Fn() functions have been added
• the dependency toward a windows terminal library has been removed

v1.6.0

Compare Source

Release v1.6.0

v1.5.0

Compare Source

This new release introduces:

• Ability to DisableHTMLEscape when using the JSON formatter: https://github.com/sirupsen/logrus/pull/524
• Support/fixes for go 1.14
• Many many bugfixes

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by Renovate Bot.

[nicosto]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: go.sum

Command failed: go get -d ./...
go: github.com/deislabs/oras@v0.5.1-0.20190510174428-2836a4314d4a requires
	github.com/docker/docker@v1.14.0-0.20190131205458-8a43b7bb99cd: invalid pseudo-version: version before v1.14.0 would have negative patch number