chore(deps): update dependency @testing-library/jest-dom to ^6.8.0

[renovate-sh-app]

This PR contains the following updates:

Package	Change	Age	Confidence
@testing-library/jest-dom	^6.6.2 -> ^6.8.0

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Release Notes

testing-library/jest-dom (@​testing-library/jest-dom)

v6.9.1

Compare Source

Bug Fixes

• Fix undefined Node error (nodejs) (#​707) (0ff8904)

v6.9.0

Compare Source

Features

• Add .toAppearBefore/.toAppearAfter matcher (#​702) (95f870a)

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[renovate-sh-app]

⚠️ 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
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The artifact failure details are included below:

File name: yarn.lock

Usage Error: Environment variable not found (CLOUD_NPM_DEV_PASSWORD) in /tmp/renovate/repos/github/grafana/grafana-async-query-data-js/.yarnrc.yml (in /tmp/renovate/repos/github/grafana/grafana-async-query-data-js/.yarnrc.yml)

Yarn Package Manager - 4.10.3

  $ yarn <command>

You can also print more details about any of these commands by calling them with 
the `-h,--help` flag right after the command name.