chore(deps): update dependency gradle to v8.13 (#28)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [gradle](https://gradle.org) ([source](https://github.com/gradle/gradle)) | minor | `8.12.1` -> `8.13` |

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### Release Notes

<details>
<summary>gradle/gradle (gradle)</summary>

### [`v8.13`](https://github.com/gradle/gradle/releases/tag/v8.13.0): 8.13

[Compare Source](https://github.com/gradle/gradle/compare/v8.12.1...v8.13.0)

The Gradle team is excited to announce Gradle 8.13.

[Read the Release Notes](https://docs.gradle.org/8.13/release-notes.html)

We would like to thank the following community members for their contributions to this release of Gradle:
[Adam](https://github.com/adam-enko),
[Adam](https://github.com/aSemy),
[Ahmad Al-Masry](https://github.com/AhmadMasry),
[Ahmed Ehab](https://github.com/ahmedehabb),
[Aurimas](https://github.com/liutikas),
[Baptiste Decroix](https://github.com/bdecroix-spiria),
[Björn Kautler](https://github.com/Vampire),
[Borewit](https://github.com/Borewit),
[Jorge Matamoros](https://github.com/YungOkra),
[Lei Zhu](https://github.com/Korov),
[Madalin Valceleanu](https://github.com/vmadalin),
[Mohammed Thavaf](https://github.com/mthavaf),
[Patrick Brückner](https://github.com/madmuffin1),
[Philip Wedemann](https://github.com/hfhbd),
[Roberto Perez Alcolea](https://github.com/rpalcolea),
[Róbert Papp](https://github.com/TWiStErRob),
[Semyon Gaschenko](https://github.com/gasches),
[Shi Chen](https://github.com/CsCherrYY),
[Stefan M.](https://github.com/StefMa),
[Steven Schoen](https://github.com/DSteve595),
[tg-freigmbh](https://github.com/tg-freigmbh),
[TheGoesen](https://github.com/TheGoesen),
[Tony Robalik](https://github.com/autonomousapps),
[Zongle Wang](https://github.com/Goooler).

#### Upgrade instructions

Switch your build to use Gradle 8.13 by updating your wrapper:

    ./gradlew wrapper --gradle-version=8.13 && ./gradlew wrapper

See the Gradle [8.x upgrade guide](https://docs.gradle.org/8.13/userguide/upgrading_version\_8.html) to learn about deprecations, breaking changes and other considerations when upgrading.

For Java, Groovy, Kotlin and Android compatibility, see the [full compatibility notes](https://docs.gradle.org/8.13/userguide/compatibility.html).

#### Reporting problems

If you find a problem with this release, please file a bug on [GitHub Issues](https://github.com/gradle/gradle/issues) adhering to our issue guidelines.
If you're not sure you're encountering a bug, please use the [forum](https://discuss.gradle.org/c/help-discuss).

We hope you will build happiness with Gradle, and we look forward to your feedback via [Twitter](https://twitter.com/gradle) or on [GitHub](https://github.com/gradle).

</details>

---

### Configuration

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🚦 **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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---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #28
Co-authored-by: Renovate Bot <renovate@brmartin.co.uk>
Co-committed-by: Renovate Bot <renovate@brmartin.co.uk>

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME