Update dependency @kintone/plugin-uploader to v5.0.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@kintone/plugin-uploader	5.0.7 -> 5.0.8

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Release Notes

kintone/js-sdk

### [`v5.0.8`](https://togithub.com/kintone/js-sdk/blob/master/packages/plugin-uploader/CHANGELOG.md#​508-httpsgithubcomkintonejs-sdkcomparekintoneplugin-uploader507kintoneplugin-uploader508-2021-08-04) [Compare Source](https://togithub.com/kintone/js-sdk/compare/@kintone/plugin-uploader@5.0.7...@kintone/plugin-uploader@5.0.8) ##### Bug Fixes - **deps:** update dependency chalk to ^4.1.2 ([#​1040](https://togithub.com/kintone/js-sdk/issues/1040)) ([ca03817](https://togithub.com/kintone/js-sdk/commit/ca03817936ed9b9413186a14bf676a1e6af57304))

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