build(deps): bump github.com/pkg/errors from 0.8.1 to 0.9.1

[dependabot-preview]

Bumps github.com/pkg/errors from 0.8.1 to 0.9.1.

Release notes

Sourced from github.com/pkg/errors's releases.

errors 0.9.1

pkg/errors 0.9.1 is a bug fix release for errors 0.9.0. This restore the previous behaviour on Cause method, this behaviour was changed on the PR: #215 and many breaking changes was produced by that.

errors 0.9.0 is a preparation release for a 1.0 final release. Also we were working on removing support for Go 1.8, 1.9 and 1.10 and earlier, and become compatible this package with new way of errors on Go 1.13.

We tried to move into runtime.CallerFrames but this was not possible, you can show the explanation here: Issue 188.

The motivation for do the backward compatible this package with Go 1.13 is that you can migrate the easy way for this to the new way.

Now you could use the methods, Is and As, and the Unwrap() interface like on the standard library.

The method Cause is now compatible with fmt.Errorf("%w", err) and with the Unwrap() interface.

On the same way the methods related with wrapping on this package now are compatible with Cause and Unwrap() interface.

Improvements

• .travis.yml Now use make file.
• reduce allocations when printing stack traces. Thanks @cstockton
• Reduce allocations in Stacktrace.Format
• Add Support to Go 1.13. Thanks @jayschwa, @Sherlock-Holo and @puellanivis.
• Add json.Marshaler support to the Frame type. Thanks @flimzy

Bugs fixed

• .travis.yml Adjust Go versions. Thanks @komuw, @aperezg
• minor fix in an example to print Stack Trace. Thanks @bep.
• Remove not necessary code.
• Clean up documentation. Thanks @seh.

Commits

• 614d223 Revert "Support Go 1.13 error chains in Cause (#215)" (#220)
• 49f8f61 Support Go 1.13 error chains in Cause (#215)
• 004deef remove unnecessary use of fmt.Sprintf (#217)
• 6d954f5 feat: support std errors functions (#213)
• 7f95ac1 Add support for Go 1.13 error chains (#206)
• 91f1693 travis.yml: add Go 1.13
• ca0248e fix travis, 1.10 doesnt support by unconvert anymore
• 27936f6 travis.yml: add Go 1.12 (#200)
• 856c240 Add json.Marshaler support to the Frame type. (#197)
• ffb6e22 Reduce allocations in StackTrace.Format (#194)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Note: This repo was added to Dependabot recently, so you'll receive a maximum of 5 PRs for your first few update runs. Once an update run creates fewer than 5 PRs we'll remove that limit.

You can always request more updates by clicking Bump now in your Dependabot dashboard.

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

[dependabot-preview]

This pull request will no longer be automatically closed when a new version is found as this pull request was created by Dependabot Preview and this repo is using a version: 2 config file. You can close this pull request and let Dependabot re-create it the next time it checks for updates.