vscode_extension_dumper: do not downcase since that can dump (while creating from scratch) an incorrect extension name

(The extension as named by their author should retain case)

Author: vraravam

lib/bundle/vscode_extension_dumper.rb

@@ -10,7 +10,7 @@ def reset!
 
     def extensions
       @extensions ||= if Bundle.vscode_installed?
-        `code --list-extensions 2>/dev/null`.split("\n").map(&:downcase)
+        `code --list-extensions 2>/dev/null`.split("\n")
       else
         []
       end