Update module pressly/chi to v4.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/pressly/chi	require	patch	v4.0.2+incompatible -> v4.0.3

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Release Notes

pressly/chi

### [`v4.0.3`](https://togithub.com/pressly/chi/blob/master/CHANGELOG.md#v403-2020-01-09) [Compare Source](https://togithub.com/pressly/chi/compare/v4.0.2...v4.0.3) - core: fix regexp routing to include default value when param is not matched - middleware: rewrite of middleware.Compress - middleware: suppress http.ErrAbortHandler in middleware.Recoverer - History of changes: see

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[renovate[bot]]

:warning: Artifact update problem

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

:recycle: 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 check the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: go.sum

Command failed: docker run --rm -v "/mnt/renovate/gh/buro9/microcosm":"/mnt/renovate/gh/buro9/microcosm" -v "/tmp/renovate-cache/others/go":"/tmp/renovate-cache/others/go" -e GOPATH -e GOPROXY -e GONOSUMDB -e CGO_ENABLED=0 -w "/mnt/renovate/gh/buro9/microcosm" renovate/go bash -c "git config --global url.\"https://x-access-token:**redacted**@github.com/\".insteadOf \"https://github.com/\" && go get -d ./..."
go: finding golang.org/x/net aa69164e4478
go: github.com/bradfitz/gomemcache@v0.0.0-20190329200359-551aad21a668: invalid pseudo-version: does not match version-control timestamp (2019-03-29T17:39:43Z)