seven said:
This is a sound issue:

As Boba Fett enters the 'dinning' room when Vader says "...glad if you joined us", Boba Fett emerges.

The sound that we hear as he enters the room sound like spurs from cowboy boots. While this does make it a cool entrance, technically, there is nothing on his costume that would make this sound as he walked.

To expand on this, is this 'spur' jingle heard every time we see him walking for consistency?

That i bet could be one of those Easter Eggs if intentional, as Lucas loved serials from the 30's and such maybe he did that as a nod to the weekly cowboy thing.