Update dependency @sentry/webpack-plugin to v1.18.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@sentry/webpack-plugin	1.18.8 -> 1.18.9

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Release Notes

getsentry/sentry-webpack-plugin

### [`v1.18.9`](https://togithub.com/getsentry/sentry-webpack-plugin/blob/HEAD/CHANGELOG.md#​1189) [Compare Source](https://togithub.com/getsentry/sentry-webpack-plugin/compare/v1.18.8...v1.18.9) ##### Various fixes & improvements - ref: Update sentry-cli and refresh GH actions ([#​368](https://togithub.com/getsentry/sentry-webpack-plugin/issues/368)) by [@​kamilogorek](https://togithub.com/kamilogorek) - docs: Update dryRun documentation to reflect auto-configuration. ([#​366](https://togithub.com/getsentry/sentry-webpack-plugin/issues/366)) by [@​fiveable-jferg](https://togithub.com/fiveable-jferg) - chore: update [@​sentry/cli](https://togithub.com/sentry/cli) to latest major version ([#​363](https://togithub.com/getsentry/sentry-webpack-plugin/issues/363)) by [@​sawilde](https://togithub.com/sawilde)

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Configuration

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