Revert "Bump System.Management from 8.0.0 to 9.0.6 (#639)"

This reverts commit 48791ce.

Author: SimonCropp

src/Directory.Packages.props

@@ -19,7 +19,7 @@
     <PackageVersion Include="Serilog.Sinks.File" Version="7.0.0" />
     <PackageVersion Include="System.Globalization.Extensions" Version="4.3.0" />
     <PackageVersion Include="System.IO.Compression" Version="4.3.0" />
-    <PackageVersion Include="System.Management" Version="9.0.6" />
+    <PackageVersion Include="System.Management" Version="8.0.0" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <PackageVersion Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
     <PackageVersion Include="System.Text.Json" Version="9.0.6" />