fix(deps): update github.com/tidbyt/go-libwebp commit hash to 6042ce4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/tidbyt/go-libwebp	require	digest	dd1cead -> 6042ce4

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Configuration

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♻ Rebasing: Renovate will not automatically rebase this PR, because other commits have been found.

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

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[renovate]

⚠ 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: docker run --rm --name=renovate_go --label=renovate_child -v "/mnt/renovate/gh/tidbyt/pixlet":"/mnt/renovate/gh/tidbyt/pixlet" -v "/tmp/renovate-cache":"/tmp/renovate-cache" -e GOPATH -e GOPROXY -e GOFLAGS -e CGO_ENABLED -e GIT_CONFIG_KEY_0 -e GIT_CONFIG_VALUE_0 -e GIT_CONFIG_KEY_1 -e GIT_CONFIG_VALUE_1 -e GIT_CONFIG_KEY_2 -e GIT_CONFIG_VALUE_2 -e GIT_CONFIG_COUNT -e GIT_CONFIG_KEY_3 -e GIT_CONFIG_VALUE_3 -e GIT_CONFIG_KEY_4 -e GIT_CONFIG_VALUE_4 -e GIT_CONFIG_KEY_5 -e GIT_CONFIG_VALUE_5 -w "/mnt/renovate/gh/tidbyt/pixlet" docker.io/renovate/go:1.17.7 bash -l -c "go get -d -t ./..."
go: downloading github.com/spf13/cobra v1.3.0
go: downloading go.starlark.net v0.0.0-20220223235035-243c74974e97
go: downloading github.com/pkg/errors v0.9.1
go: downloading github.com/tidbyt/go-libwebp v0.0.0-20220302154536-6042ce446e9c
go: downloading github.com/stretchr/testify v1.7.0
go: downloading github.com/fogleman/gg v1.3.0
go: downloading github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
go: downloading github.com/zachomedia/go-bdf v0.0.0-20210522061406-1a147053be95
go: downloading golang.org/x/image v0.0.0-20211028202545-6944b10bf410
go: downloading github.com/antchfx/xmlquery v1.3.9
go: downloading github.com/google/tink/go v1.4.0
go: downloading github.com/lucasb-eyer/go-colorful v1.2.0
go: downloading github.com/mitchellh/hashstructure/v2 v2.0.2
go: downloading github.com/qri-io/starlib v0.5.1-0.20211102160121-ae835e29cd41
go: downloading github.com/dustin/go-humanize v1.0.0
go: downloading github.com/newm4n/go-dfe v0.0.0-20210113055126-9d5f01722db9
go: downloading github.com/nathan-osman/go-sunrise v1.0.0
go: downloading github.com/go-playground/validator/v10 v10.10.0
go: downloading golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
go: downloading github.com/gorilla/mux v1.8.0
go: downloading github.com/gorilla/websocket v1.5.0
go: downloading github.com/fsnotify/fsnotify v1.5.1
go: downloading github.com/inconshreveable/mousetrap v1.0.0
go: downloading github.com/spf13/pflag v1.0.5
go: downloading golang.org/x/sys v0.0.0-20211205182925-97ca703d548d
go: downloading github.com/davecgh/go-spew v1.1.1
go: downloading github.com/pmezard/go-difflib v1.0.0
go: downloading gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
go: downloading github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
go: downloading golang.org/x/text v0.3.7
go: downloading github.com/antchfx/xpath v1.2.0
go: downloading github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
go: downloading golang.org/x/net v0.0.0-20210825183410-e898025ed96a
go: downloading github.com/golang/protobuf v1.5.2
go: downloading github.com/PuerkitoBio/goquery v1.5.1
go: downloading github.com/go-playground/universal-translator v0.18.0
go: downloading github.com/leodido/go-urn v1.2.1
go: downloading golang.org/x/crypto v0.0.0-20210817164053-32db794688a5
go: downloading google.golang.org/protobuf v1.27.1
go: downloading github.com/andybalholm/cascadia v1.1.0
go: downloading github.com/go-playground/locales v0.14.0
tidbyt.dev/pixlet/server/browser imports
	tidbyt.dev/pixlet/dist: cannot find module providing package tidbyt.dev/pixlet/dist