Bump xunit.runner.visualstudio to 3.1.3

---
updated-dependencies:
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: xunit.runner.visualstudio
  dependency-version: 3.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

test/ProgressOnderwijsUtils.Tests/ProgressOnderwijsUtils.Tests.csproj

@@ -3,7 +3,7 @@
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="2024.3.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>