Update dependency FluentAssertions to 5.10.3 (#1888)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[FluentAssertions](https://xceed.com/products/unit-testing/fluent-assertions/)
([source](https://redirect.github.com/fluentassertions/fluentassertions))
| nuget | patch | `5.10.2` -> `5.10.3` |

---

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### Release Notes

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

###
[`v5.10.3`](https://redirect.github.com/fluentassertions/fluentassertions/releases/tag/5.10.3)

[Compare
Source](https://redirect.github.com/fluentassertions/fluentassertions/compare/5.10.2...5.10.3)

[Release Notes](https://fluentassertions.com/releases/#&#8203;5103)

</details>

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testing-unit-cs-mocks/UnitTesting.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.10.2" />
+    <PackageReference Include="FluentAssertions" Version="5.10.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />

testing-unit-cs/UnitTesting.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.10.2" />
+    <PackageReference Include="FluentAssertions" Version="5.10.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="NUnit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />

testing-unit-fs-mocks/UnitTestingFs.fsproj

@@ -7,7 +7,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="FluentAssertions" Version="5.10.2" />
+        <PackageReference Include="FluentAssertions" Version="5.10.3" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
         <PackageReference Include="NUnit" Version="3.14.0" />
         <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />