chore(deps): update dependency verify.xunit to v26.1.6 (#3872)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [Verify.Xunit](https://togithub.com/VerifyTests/Verify) | `26.1.1` ->
`26.1.6` |
[![age](https://developer.mend.io/api/mc/badges/age/nuget/Verify.Xunit/26.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/nuget/Verify.Xunit/26.1.1/26.1.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|

---

### Release Notes

<details>
<summary>VerifyTests/Verify (Verify.Xunit)</summary>

###
[`v26.1.6`](https://togithub.com/VerifyTests/Verify/compare/26.1.5...26.1.6)

[Compare
Source](https://togithub.com/VerifyTests/Verify/compare/26.1.5...26.1.6)

###
[`v26.1.5`](https://togithub.com/VerifyTests/Verify/compare/26.1.3...26.1.5)

[Compare
Source](https://togithub.com/VerifyTests/Verify/compare/26.1.3...26.1.5)

###
[`v26.1.3`](https://togithub.com/VerifyTests/Verify/compare/26.1.2...26.1.3)

[Compare
Source](https://togithub.com/VerifyTests/Verify/compare/26.1.2...26.1.3)

###
[`v26.1.2`](https://togithub.com/VerifyTests/Verify/compare/26.1.1...26.1.2)

[Compare
Source](https://togithub.com/VerifyTests/Verify/compare/26.1.1...26.1.2)

</details>

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src/Directory.Packages.props

@@ -33,7 +33,7 @@
     <PackageVersion Include="System.IO.FileSystem.Primitives" Version="4.3.0" />
     <PackageVersion Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageVersion Include="System.Text.Json" Version="8.0.4" />
-    <PackageVersion Include="Verify.Xunit" Version="26.1.1" />
+    <PackageVersion Include="Verify.Xunit" Version="26.1.6" />
     <PackageVersion Include="xunit" Version="2.9.0" />
     <PackageVersion Include="xunit.runner.console" Version="2.9.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />