Disable the warning IDE0031 to take .NET 7 Preview 7 (PowerShell#17770)

Author: adityapatwardhan

.editorconfig

@@ -115,6 +115,7 @@ dotnet_style_prefer_conditional_expression_over_assignment = true:silent
 dotnet_style_prefer_auto_properties = true:suggestion
 csharp_prefer_simple_default_expression = true:suggestion
 dotnet_style_prefer_compound_assignment = false:silent
+dotnet_diagnostic.IDE0031.severity = none
 
 dotnet_code_quality_unused_parameters = non_public:suggestion