chore(deps): update dependency gradle to v8.9 - autoclosed

This PR contains the following updates:

Package	Update	Change
gradle (source)	minor	`8.8` -> `8.9`

gradle/gradle (gradle)

### [`v8.9`](https://togithub.com/gradle/gradle/compare/v8.8.0...v8.9.0) [Compare Source](https://togithub.com/gradle/gradle/compare/v8.8.0...v8.9.0)

📅 Schedule: Branch creation - "after 10pm" in timezone Europe/Prague, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, 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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micronaut-projects / micronaut-sourcegen