Bump NGitLab from 7.6.0 to 8.3.0 in /src

Bumps [NGitLab](https://github.com/ubisoft/NGitLab) from 7.6.0 to 8.3.0.
- [Release notes](https://github.com/ubisoft/NGitLab/releases)
- [Commits](ubisoft/NGitLab@7.6.0...8.3.0)

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

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="9.0.3" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="NGitLab" Version="7.6.0" />
+    <PackageVersion Include="NGitLab" Version="8.3.0" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="NUnit" Version="4.3.2" />
     <PackageVersion Include="NUnit.Analyzers" Version="4.7.0" />