add YAML Editorconfig rules

This prevents our CodeFactor issues as apparently the Red Hat YAML extension doesn't normalize whitespaces on save

Signed-off-by: GitHub <noreply@github.com>

.editorconfig

@@ -211,4 +211,10 @@ dotnet_diagnostic.IDE0073.severity = warning
 dotnet_diagnostic.CA2225.severity = none
 
 # Banned APIs
-dotnet_diagnostic.RS0030.severity = error
+dotnet_diagnostic.RS0030.severity = error
+
+[*.{yaml,yml}]
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true