ORC-1823: Upgrade checkstyle to 10.21.1

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 10.21.0 to 10.21.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/checkstyle/checkstyle/releases">com.puppycrawl.tools:checkstyle's releases</a>.</em></p>
<blockquote>
<h2>checkstyle-10.21.1</h2>
<p>Checkstyle 10.21.1 - <a href="https://checkstyle.org/releasenotes.html#Release_10.21.1">https://checkstyle.org/releasenotes.html#Release_10.21.1</a></p>
<p>Bug fixes:</p>
<p><a href="https://redirect.github.com/checkstyle/checkstyle/issues/11374">#11374</a> - UnusedLocalVariable: False Positive when  inner class has same field as variable</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/checkstyle/checkstyle/commit/426bbe4453679d6f887c22ab32fa1fc36e41f955"><code>426bbe4</code></a> [maven-release-plugin] prepare release checkstyle-10.21.1</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/01f6dc717b3667e63bf1620c01364e088375c4a0"><code>01f6dc7</code></a> doc: release notes for 10.21.1</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/78afa196cf01f071b372392ea23601cb4719db88"><code>78afa19</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/14881">#14881</a>: remove null from ValidateUntaggedSummary</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/60627079389a883efba692c241b4d73dabc09178"><code>6062707</code></a> dependency: bump pmd.version from 7.8.0 to 7.9.0</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/e123c5ea5c8a87d6f2b385e0eadbed9b578e5272"><code>e123c5e</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/13345">#13345</a>: Enable examples tests for PackageNameCheckExamplesTest</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/6f61072ef4eef25aaebfa81b9760e371b51f4bbd"><code>6f61072</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/14631">#14631</a>: Updated code_literal to new AST format</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/453dd9a02554f321b2ad1bc5cc1faa03de929a21"><code>453dd9a</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/13345">#13345</a>: Enable example test for SuppressWarningFilters</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/3433ab6bf19028961a42d974d9f2dd3c3f79eae0"><code>3433ab6</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/13345">#13345</a>: Enable examples tests for MissingJavadocPackageCheck</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/ffafaf6b30ad7b2f00c94a22f031f8a19a2423a2"><code>ffafaf6</code></a> dependency: Update maven checkstyle plugin to 3.6.0</li>
<li><a href="https://github.com/checkstyle/checkstyle/commit/6f59c099dca4506a4209dee4dd998ffe0bd5a35f"><code>6f59c09</code></a> Issue <a href="https://redirect.github.com/checkstyle/checkstyle/issues/14631">#14631</a>: Updated Right_Brace to new AST format</li>
<li>Additional commits viewable in <a href="https://github.com/checkstyle/checkstyle/compare/checkstyle-10.21.0...checkstyle-10.21.1">compare view</a></li>
</ul>
</details>
<br />

<details>
<summary>Most Recent Ignore Conditions Applied to This Pull Request</summary>

| Dependency Name | Ignore Conditions |
| --- | --- |
| com.puppycrawl.tools:checkstyle | [< 10.13, > 10.12.0] |
</details>

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Closes #2096 from dependabot[bot]/dependabot/maven/java/com.puppycrawl.tools-checkstyle-10.21.1.

Authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>

java/pom.xml

@@ -62,7 +62,7 @@
   <properties>
     <bouncycastle.version>1.79</bouncycastle.version>
     <brotli4j.version>1.18.0</brotli4j.version>
-    <checkstyle.version>10.21.0</checkstyle.version>
+    <checkstyle.version>10.21.1</checkstyle.version>
     <example.dir>${project.basedir}/../../examples</example.dir>
     <hadoop.version>3.4.1</hadoop.version>
     <java.version>17</java.version>