fix(deps): update module github.com/heroku/x to v0.2.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/heroku/x	v0.2.7 -> v0.2.8

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Release Notes

heroku/x (github.com/heroku/x)

### [`v0.2.8`](https://redirect.github.com/heroku/x/releases/tag/v0.2.8) [Compare Source](https://redirect.github.com/heroku/x/compare/v0.2.7...v0.2.8) #### What's Changed - Bump github.com/aws/aws-sdk-go from 1.13.10 to 1.34.0 by [@​dependabot](https://redirect.github.com/dependabot) in [https://github.com/heroku/x/pull/185](https://redirect.github.com/heroku/x/pull/185) **Full Changelog**: https://github.com/heroku/x/compare/v0.2.7...v0.2.8

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