chore(deps): update dependency fluentassertions to 6.12.2 (#82)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [FluentAssertions](https://www.fluentassertions.com/)
([source](https://redirect.github.com/fluentassertions/fluentassertions))
| `6.12.1` -> `6.12.2` |
[![age](https://developer.mend.io/api/mc/badges/age/nuget/FluentAssertions/6.12.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/nuget/FluentAssertions/6.12.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/nuget/FluentAssertions/6.12.1/6.12.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/nuget/FluentAssertions/6.12.1/6.12.2?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>fluentassertions/fluentassertions (FluentAssertions)</summary>

###
[`v6.12.2`](https://redirect.github.com/fluentassertions/fluentassertions/releases/tag/6.12.2)

[Compare
Source](https://redirect.github.com/fluentassertions/fluentassertions/compare/6.12.1...6.12.2)

<!-- Release notes generated using configuration in .github/release.yml
at master -->

#### What's Changed

##### Others

- Better support for default interface and explicitly implemented
properties by
[@&#8203;dennisdoomen](https://redirect.github.com/dennisdoomen) in
[https://github.com/fluentassertions/fluentassertions/pull/2794](https://redirect.github.com/fluentassertions/fluentassertions/pull/2794)

**Full Changelog**:
fluentassertions/fluentassertions@6.12.1...6.12.2

</details>

---

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MumbleApi.Test/MumbleApi.Test.csproj

@@ -10,7 +10,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="FluentAssertions" Version="6.12.1" />
+        <PackageReference Include="FluentAssertions" Version="6.12.2" />
         <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.10" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
         <PackageReference Include="xunit" Version="2.9.2" />