Kobo driver : support new firmware version 3.0.1

Kobo snuck out new firmware 3.0.1. This has no changes that affect the
driver. As Kobo have done this a few times recently, I am setting the
supported version to 3.0.5. This will allow for a few small bug fix
releases. Fixes #1255363 [Unable to transfer to Kobo Touch](https://bugs.launchpad.net/calibre/+bug/1255363)

src/calibre/devices/kobo/driver.py

@@ -1254,7 +1254,7 @@ class KOBOTOUCH(KOBO):
     min_dbversion_activity          = 77
     min_dbversion_keywords          = 82
 
-    max_supported_fwversion         = (3, 0, 0)
+    max_supported_fwversion         = (3, 0, 5)
     min_fwversion_shelves           = (2, 0, 0)
     min_fwversion_images_on_sdcard  = (2, 4, 1)
     min_fwversion_images_tree       = (2, 9, 0)  # Cover images stored in tree under .kobo-images