(deps): Bump JunitXml.TestLogger from 5.0.0 to 6.0.0 in /src

Bumps [JunitXml.TestLogger](https://github.com/spekt/testlogger) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/spekt/testlogger/releases)
- [Changelog](https://github.com/spekt/testlogger/blob/master/CHANGELOG.md)
- [Commits](spekt/testlogger@v5.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: JunitXml.TestLogger
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -20,7 +20,7 @@
     <!-- specific packages -->
     <PackageVersion Include="Buildalyzer" Version="7.1.0" />
     <PackageVersion Include="JsonSchema.Net.Generation" Version="5.0.0" />
-    <PackageVersion Include="JunitXml.TestLogger" Version="5.0.0" />
+    <PackageVersion Include="JunitXml.TestLogger" Version="6.0.0" />
     <PackageVersion Include="MSBuild.ProjectCreation" Version="14.0.0" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.2" />
     <PackageVersion Include="Microsoft.Build" Version="17.12.6" />