chore(deps): update dependency @grafana/eslint-config to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@grafana/eslint-config	^7.0.0 -> ^8.0.0

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Release Notes

grafana/eslint-config-grafana (@​grafana/eslint-config)

v8.0.0

Compare Source

• Breaking: Migrate dependencies to peerDependencies. Please make sure to install peerDependencies when using this package.
• Add flat config for Eslint 9 support.

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Configuration

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♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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

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• [ ] If you want to rebase/retry this PR, check this box

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