Update Russian translation

Change-Id: I5628eeb28a07949cc9e215903ca8aac044f68449
Reviewed-by: Anton Kudryavtsev <a.kudryavtsev@netris.ru>
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

translations/qtwebengine_ru.ts

@@ -121,6 +121,10 @@
         <source>Reload</source>
         <translation>Перезагрузить</translation>
     </message>
+    <message>
+        <source>Reload and Bypass Cache</source>
+        <translation>Перезагрузить без кэша</translation>
+    </message>
     <message>
         <source>Cut</source>
         <translation>Вырезать</translation>