ORC-1836: Upgrade zstd-jni to 1.5.6-9

Bumps [com.github.luben:zstd-jni](https://github.com/luben/zstd-jni) from 1.5.6-8 to 1.5.6-9.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/luben/zstd-jni/commit/59b0b19c30b6942ad7eef8bb9a8c14e22290be3d"><code>59b0b19</code></a> v1.5.6-9</li>
<li><a href="https://github.com/luben/zstd-jni/commit/0357eef1eb46b3542d1b66efc2a6be4943717dec"><code>0357eef</code></a> Workaround <code>os.arch</code> reporting inconsistency on MacOS</li>
<li><a href="https://github.com/luben/zstd-jni/commit/c981e9a86a7cc2f0d49456d45d09ed2badb5827c"><code>c981e9a</code></a> Fix typo in README</li>
<li>See full diff in <a href="https://github.com/luben/zstd-jni/compare/v1.5.6-8...v1.5.6-9">compare view</a></li>
</ul>
</details>
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Closes #2107 from dependabot[bot]/dependabot/maven/java/com.github.luben-zstd-jni-1.5.6-9.

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

Author: dependabot[bot]

java/pom.xml

@@ -84,7 +84,7 @@
     <storage-api.version>2.8.1</storage-api.version>
     <surefire.version>3.0.0-M5</surefire.version>
     <test.tmp.dir>${project.build.directory}/testing-tmp</test.tmp.dir>
-    <zstd-jni.version>1.5.6-8</zstd-jni.version>
+    <zstd-jni.version>1.5.6-9</zstd-jni.version>
   </properties>
 
   <dependencyManagement>