Bump NFluent from 3.0.2.500 to 3.0.3

Bumps [NFluent](https://github.com/tpierrain/NFluent) from 3.0.2.500 to 3.0.3.
- [Release notes](https://github.com/tpierrain/NFluent/releases)
- [Commits](https://github.com/tpierrain/NFluent/commits/V_3.0.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

tests/ParserTests/ParserTests.csproj

@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="NFluent" Version="3.0.2.500" />
+    <PackageReference Include="NFluent" Version="3.0.3" />
     <PackageReference Include="xunit" Version="2.6.5" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>