chore(deps): update dependency system.collections.immutable to v10 (#33)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Directory.Packages.props

@@ -28,7 +28,7 @@
     <PackageVersion Include="Splat.Microsoft.Extensions.DependencyInjection" Version="$(SplatVersion)" />
     <PackageVersion Include="Splat.Ninject" Version="$(SplatVersion)" />
     <PackageVersion Include="stylecop.analyzers" Version="1.2.0-beta.556" />
-    <PackageVersion Include="System.Collections.Immutable" Version="9.0.11" />
+    <PackageVersion Include="System.Collections.Immutable" Version="10.0.1" />
     <PackageVersion Include="System.IO.FileSystem.Primitives" Version="4.3.0" />
     <PackageVersion Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageVersion Include="NUnit" Version="4.4.0" />