Bump NuGet.Protocol from 6.11.1 to 6.12.1 (#36)

Bumps [NuGet.Protocol](https://github.com/NuGet/NuGet.Client) from 6.11.1 to 6.12.1.
- [Release notes](https://github.com/NuGet/NuGet.Client/releases)
- [Commits](https://github.com/NuGet/NuGet.Client/commits)

---
updated-dependencies:
- dependency-name: NuGet.Protocol
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

CICD.Tools.SyncNuGets/CICD.Tools.SyncNuGets.csproj

@@ -30,7 +30,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="NuGet.Protocol" Version="6.11.1" />
+    <PackageReference Include="NuGet.Protocol" Version="6.12.1" />
     <PackageReference Include="Skyline.DataMiner.CICD.FileSystem" Version="1.0.6" />
     <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
   </ItemGroup>