deps: update dependency org.graalvm.buildtools:native-maven-plugin to…

… v0.9.21 (#1320)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.graalvm.buildtools:native-maven-plugin](https://togithub.com/graalvm/native-build-tools) | `0.9.20` -> `0.9.21` | [![age](https://badges.renovateapi.com/packages/maven/org.graalvm.buildtools:native-maven-plugin/0.9.21/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.graalvm.buildtools:native-maven-plugin/0.9.21/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.graalvm.buildtools:native-maven-plugin/0.9.21/compatibility-slim/0.9.20)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.graalvm.buildtools:native-maven-plugin/0.9.21/confidence-slim/0.9.20)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>graalvm/native-build-tools</summary>

### [`v0.9.21`](https://togithub.com/graalvm/native-build-tools/releases/tag/0.9.21)

[Compare Source](https://togithub.com/graalvm/native-build-tools/compare/0.9.20...0.9.21)

#### What's Changed

-   Change samples link, add quickstarts by [@&#8203;alina-yur](https://togithub.com/alina-yur) in [https://togithub.com/graalvm/native-build-tools/pull/405](https://togithub.com/graalvm/native-build-tools/pull/405)
-   Fix typo by [@&#8203;alvarosanchez](https://togithub.com/alvarosanchez) in [https://togithub.com/graalvm/native-build-tools/pull/406](https://togithub.com/graalvm/native-build-tools/pull/406)
-   Add a new write-args-file goal by [@&#8203;alvarosanchez](https://togithub.com/alvarosanchez) in [https://togithub.com/graalvm/native-build-tools/pull/408](https://togithub.com/graalvm/native-build-tools/pull/408)
-   Enable metadata copy when agent is enabled from cmd by [@&#8203;dnestoro](https://togithub.com/dnestoro) in [https://togithub.com/graalvm/native-build-tools/pull/407](https://togithub.com/graalvm/native-build-tools/pull/407)
-   Fix compatibility with Gradle's configuration cache by [@&#8203;melix](https://togithub.com/melix) in [https://togithub.com/graalvm/native-build-tools/pull/339](https://togithub.com/graalvm/native-build-tools/pull/339)
-   Run the native tests in the submodule folder by [@&#8203;alvarosanchez](https://togithub.com/alvarosanchez) in [https://togithub.com/graalvm/native-build-tools/pull/414](https://togithub.com/graalvm/native-build-tools/pull/414)
-   Disable toolchain detection by default by [@&#8203;melix](https://togithub.com/melix) in [https://togithub.com/graalvm/native-build-tools/pull/420](https://togithub.com/graalvm/native-build-tools/pull/420)
-   Deprecate `requiredVersion`. by [@&#8203;fniephaus](https://togithub.com/fniephaus) in [https://togithub.com/graalvm/native-build-tools/pull/421](https://togithub.com/graalvm/native-build-tools/pull/421)
-   Bump metadata repo version by [@&#8203;dnestoro](https://togithub.com/dnestoro) in [https://togithub.com/graalvm/native-build-tools/pull/423](https://togithub.com/graalvm/native-build-tools/pull/423)

#### New Contributors

-   [@&#8203;alina-yur](https://togithub.com/alina-yur) made their first contribution in [https://togithub.com/graalvm/native-build-tools/pull/405](https://togithub.com/graalvm/native-build-tools/pull/405)
-   [@&#8203;fniephaus](https://togithub.com/fniephaus) made their first contribution in [https://togithub.com/graalvm/native-build-tools/pull/421](https://togithub.com/graalvm/native-build-tools/pull/421)

**Full Changelog**: https://togithub.com/graalvm/native-build-tools/compare/0.9.20...0.9.21

</details>

---

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samples/native-image-sample/pom.xml

@@ -131,7 +131,7 @@
           <plugin>
             <groupId>org.graalvm.buildtools</groupId>
             <artifactId>native-maven-plugin</artifactId>
-            <version>0.9.20</version>
+            <version>0.9.21</version>
             <extensions>true</extensions>
             <configuration>
               <mainClass>com.example.logging.NativeImageLoggingSample</mainClass>