MINOR: [C#] Bump xunit.skippablefact from 1.4.13 to 1.5.23 in /csharp (apache#44907)

Bumps [xunit.skippablefact](https://github.com/AArnott/Xunit.SkippableFact) from 1.4.13 to 1.5.23.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/AArnott/Xunit.SkippableFact/releases">xunit.skippablefact's releases</a>.</em></p>
<blockquote>
<h2>v1.5.23</h2>
<h2>What's Changed</h2>
<ul>
<li>Remove dead <code>#if</code> regions by <a href="https://github.com/AArnott"><code>@​AArnott</code></a> in <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/pull/39">AArnott/Xunit.SkippableFact#39</a></li>
<li>Add skipping tests based on the [SupportedOSPlatform] attribute by <a href="https://github.com/0xced"><code>@​0xced</code></a> in <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/pull/48">AArnott/Xunit.SkippableFact#48</a></li>
<li>Build up the docfx site and create a package README by <a href="https://github.com/AArnott"><code>@​AArnott</code></a> in <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/pull/49">AArnott/Xunit.SkippableFact#49</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/dependabot"><code>@​dependabot</code></a> made their first contribution in <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/pull/36">AArnott/Xunit.SkippableFact#36</a></li>
<li><a href="https://github.com/0xced"><code>@​0xced</code></a> made their first contribution in <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/pull/48">AArnott/Xunit.SkippableFact#48</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/AArnott/Xunit.SkippableFact/compare/v1.4.13...v1.5.22">https://github.com/AArnott/Xunit.SkippableFact/compare/v1.4.13...v1.5.22</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/47a3a8b2d8a749f35a263a73a7e3adab982e0e94"><code>47a3a8b</code></a> Ship from tags</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/0ae9b5ba5c281db68863912471bcffe81cde30a4"><code>0ae9b5b</code></a> Fix ship job in build workflow</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/b8abc1d01057a351f6867b26346451d6390bec23"><code>b8abc1d</code></a> Merge pull request <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/issues/49">#49</a> from AArnott/docfx</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/7ab0c10ea23415d6285887efeba3d64c39ad502b"><code>7ab0c10</code></a> Build up the docfx site and create a package README</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/2965bfa19c1a46854bb76c0ba5b1dc7e1badb36d"><code>2965bfa</code></a> Merge pull request <a href="https://redirect.github.com/AArnott/Xunit.SkippableFact/issues/48">#48</a> from 0xced/SupportedOSPlatform</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/0dd9ae77de240e3e773e80dd216cf975463bb550"><code>0dd9ae7</code></a> Touch-ups on README</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/229598725742a6508b5248d292103b09cd202d43"><code>2295987</code></a> Add support for the [UnsupportedOSPlatform] attribute</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/00b459f3ad8baf7c509a8568fbc9aa7b49ee98b2"><code>00b459f</code></a> Add support for platform versions</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/34c92ae8f78a639ef4da6552d42702685304f1b5"><code>34c92ae</code></a> Add skipping tests based on the [SupportedOSPlatform] attribute</li>
<li><a href="https://github.com/AArnott/Xunit.SkippableFact/commit/8bc417a840376e7273631c14ba8d998a0603d8bc"><code>8bc417a</code></a> Another docfx fix</li>
<li>Additional commits viewable in <a href="https://github.com/AArnott/Xunit.SkippableFact/compare/v1.4.13...v1.5.23">compare view</a></li>
</ul>
</details>
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csharp/test/Apache.Arrow.Tests/Apache.Arrow.Tests.csproj

@@ -22,7 +22,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="xunit.skippablefact" Version="1.4.13" />
+    <PackageReference Include="xunit.skippablefact" Version="1.5.23" />
     <PackageReference Include="pythonnet" Version="3.0.4" />
   </ItemGroup>