chore(deps): update dependency xunit to v2.5.0 (#323)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [xunit](https://togithub.com/xunit/xunit) | nuget | minor | `2.4.2` ->
`2.5.0` |

---

### Release Notes

<details>
<summary>xunit/xunit (xunit)</summary>

### [`v2.5.0`](https://togithub.com/xunit/xunit/compare/2.4.2...2.5.0)

[Compare Source](https://togithub.com/xunit/xunit/compare/2.4.2...2.5.0)

</details>

---

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Examples/Directory.Build.props

@@ -42,7 +42,7 @@
 		<PackageReference Include="Moq" Version="4.18.4" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
 		<PackageReference Include="Xunit.SkippableFact" Version="1.4.*" />
-		<PackageReference Include="xunit" Version="2.4.2" />
+		<PackageReference Include="xunit" Version="2.5.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>

Tests/Directory.Build.props

@@ -29,7 +29,7 @@
 		<PackageReference Include="Moq" Version="4.18.4" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
 		<PackageReference Include="Xunit.SkippableFact" Version="1.4.*" />
-		<PackageReference Include="xunit" Version="2.4.2" />
+		<PackageReference Include="xunit" Version="2.5.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 			<PrivateAssets>all</PrivateAssets>