chore(deps): bump xunit.assert and xunit

Bumps [xunit.assert](https://github.com/xunit/xunit) and [xunit](https://github.com/xunit/xunit). These dependencies needed to be updated together.

Updates `xunit.assert` from 2.9.2 to 2.9.3
- [Commits](xunit/xunit@v2-2.9.2...v2-2.9.3)

Updates `xunit` from 2.9.2 to 2.9.3
- [Commits](xunit/xunit@v2-2.9.2...v2-2.9.3)

---
updated-dependencies:
- dependency-name: xunit.assert
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: xunit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

SafeRapidPdf.UnitTests/SafeRapidPdf.UnitTests.csproj

@@ -17,13 +17,13 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="xunit" Version="2.9.2" />
+    <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
-    <PackageReference Include="xunit.assert" Version="2.9.2" />
+    <PackageReference Include="xunit.assert" Version="2.9.3" />
   </ItemGroup>
 
   <ItemGroup>