Bump dotNetRdf from 3.4.0 to 3.4.1 (#174)

---
updated-dependencies:
- dependency-name: dotNetRdf
  dependency-version: 3.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Samu Lang <langsamu@users.noreply.github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -3,7 +3,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="dotNetRDF" Version="3.4.0" />
+    <PackageVersion Include="dotNetRDF" Version="3.4.1" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <PackageVersion Include="ExpressionTreeToolkit.Core" Version="0.4.0" />
     <PackageVersion Include="FluentAssertions" Version="7.2.0" />