Bump debug from 2.6.8 to 2.6.9

[dependabot[bot]]

Bumps debug from 2.6.8 to 2.6.9.

Release notes

*Sourced from [debug's releases](https://github.com/visionmedia/debug/releases).* > ## 2.6.9 > ### Patches > > - Remove ReDoS regexp in `%o` formatter: [#504](https://github-redirect.dependabot.com/visionmedia/debug/issues/504) > > ### Credits > > Huge thanks to [@​zhuangya](https://github.com/zhuangya) for their help!

Changelog

*Sourced from [debug's changelog](https://github.com/visionmedia/debug/blob/2.6.9/CHANGELOG.md).* > 2.6.9 / 2017-09-22 > ================== > > * remove ReDoS regexp in %o formatter ([#504](https://github-redirect.dependabot.com/visionmedia/debug/issues/504))

Commits

- [`13abeae`](https://github.com/visionmedia/debug/commit/13abeae468fea297d0dccc50bc55590809241083) Release 2.6.9 - [`f53962e`](https://github.com/visionmedia/debug/commit/f53962e944a87e6ca9bb622a2a12dffc22a9bb5a) remove ReDoS regexp in %o formatter ([#504](https://github-redirect.dependabot.com/visionmedia/debug/issues/504)) - See full diff in [compare view](https://github.com/visionmedia/debug/compare/2.6.8...2.6.9)

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[dependabot[bot]]

Dependabot tried to update this pull request, but something went wrong. We're looking into it, but in the meantime you can retry the update by commenting @dependabot rebase.

[dependabot[bot]]

Dependabot tried to update this pull request, but something went wrong. We're looking into it, but in the meantime you can retry the update by commenting @dependabot rebase.