Bump NuGet.PackageManagement from 6.9.1 to 6.11.0 (#1087)

Bumps [NuGet.PackageManagement](https://github.com/NuGet/NuGet.Client) from 6.9.1 to 6.11.0.
- [Release notes](https://github.com/NuGet/NuGet.Client/releases)
- [Commits](https://github.com/NuGet/NuGet.Client/commits)

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

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

Directory.Packages.props

@@ -29,7 +29,7 @@
     <PackageVersion Include="Nerdbank.GitVersioning.LKG" Version="3.4.173-alpha" />
     <PackageVersion Include="Newtonsoft.Json.Schema" Version="4.0.1" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageVersion Include="NuGet.PackageManagement" Version="6.9.1" />
+    <PackageVersion Include="NuGet.PackageManagement" Version="6.11.0" />
     <PackageVersion Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
     <PackageVersion Include="System.Diagnostics.Tools" Version="4.3.0" />
     <PackageVersion Include="System.Memory" Version="4.5.5" />