Allow using file: scheme for Metrics debugging

Author: AliSoftware

lib/fastlane/plugin/wpmreleasetoolkit/models/app_size_metrics_payload.rb

@@ -49,21 +49,28 @@ def to_h
       #
       def send_metrics(base_url:, api_token:)
         uri = URI.parse(base_url)
+        # Allow using a `file:` URI for debugging
+        if uri.is_a?(URI::File)
+          UI.message("Writing metrics payload to file #{uri.path} (instead of sending it to a server)")
+          File.write(uri.path, to_h.to_json)
+          return
+        end
+
+        UI.message("Sending metrics to #{uri}...")
         headers = {
           Authorization: "Bearer #{api_token}",
           Accept: 'application/json',
           'Content-Type': 'application/json',
           'Content-Encoding': 'gzip'
         }
         request = Net::HTTP::Post.new(uri, headers)
-
         request.body = Zlib.gzip(to_h.to_json)
 
         response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
           http.request(request)
         end
 
-        UI.verbose("#{response.code} #{response.message}")
+        UI.message("Metrics sent. (Received: #{response.code} #{response.message})")
         response.code.to_i
       end
     end