contrib/gfx: Fixed problem with retrieving steamdb data

Fixed problem with request header with response code 403 and potential
ssl handshake with response code 503 while trying to retrieve game
information from steamdb.info

BUG=b:156779807
TEST=./steam_hame_info.py 440

Change-Id: I1bd2c28ce89ff88f12809f0a68d625869d59dcb1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2205167
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Commit-Queue: Robert Tarasov <tutankhamen@chromium.org>
Tested-by: Robert Tarasov <tutankhamen@chromium.org>
1 file changed