Update direct dependencies where possible

vendor/github.com/go-telegram-bot-api/telegram-bot-api/log.go

@@ -0,0 +1,27 @@
+package tgbotapi
+
+import (
+	"errors"
+	stdlog "log"
+	"os"
+)
+
+// BotLogger is an interface that represents the required methods to log data.
+//
+// Instead of requiring the standard logger, we can just specify the methods we
+// use and allow users to pass anything that implements these.
+type BotLogger interface {
+	Println(v ...interface{})
+	Printf(format string, v ...interface{})
+}
+
+var log BotLogger = stdlog.New(os.Stderr, "", stdlog.LstdFlags)
+
+// SetLogger specifies the logger that the package should use.
+func SetLogger(logger BotLogger) error {
+	if logger == nil {
+		return errors.New("logger is nil")
+	}
+	log = logger
+	return nil
+}