Randomly refresh HTTP clients

src/invidious.cr

@@ -24,6 +24,9 @@ spawn do
   id = Deque.new(50, "0xjKNDMgE54")
   while true
     client = get_client
+    if rand(30) > 1
+      client = HTTP::Client.new(URL, CONTEXT)
+    end
     time = Time.now
 
     begin