Update dependency System.Configuration.ConfigurationManager to 9.0.15

Author: renovate[bot]

SidebarDiagnostics/SidebarDiagnostics.csproj

@@ -70,7 +70,7 @@
     <PackageReference Include="TaskScheduler" Version="2.12.2" />
     <PackageReference Include="gong-wpf-dragdrop" Version="4.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.10" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.15" />
     <PackageReference Include="Velopack" Version="0.0.1298" />
   </ItemGroup>
   <ItemGroup>