Update dependency System.Runtime.CompilerServices.Unsafe to 6.1.0

Author: renovate[bot]

Directory.Packages.props

@@ -35,7 +35,7 @@
     <PackageVersion Include="Nullable" Version="1.3.1" />
     <PackageVersion Include="System.Collections.Immutable" Version="6.0.0" />
     <PackageVersion Include="System.Memory" Version="4.5.5" />
-    <PackageVersion Include="System.Runtime.CompilerServices.Unsafe" Version="6.0.0" />
+    <PackageVersion Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.0" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
     <PackageVersion Include="System.ValueTuple" Version="4.5.0" />
     <PackageVersion Include="xunit.abstractions" Version="2.0.3" />