fix: raise exception on status code gt 400

[g-rar]

As mentioned on this issue, the package does not raise exceptions on status code 420. Furthermore, I was experiencing issues while tryin to execute the following code:

mc = sr_api.search(srcomapi.datatypes.Game, {"name": "Minecraft: Java Edition"})[0]
cat = mc.categories[0].records[0].category
board = sdt.Leaderboard(sr_api, data = sr_api.get(f"leaderboards/{mc.id}/category/{cat.id}?embed=players"))
print(len(board.runs))

Result was a JSONDecodeError, which was being thrown because underlying request was receiving status code 408, and code was setup to throw exception only on status_code 404.

With this oneliner, it'd throw exception on status_code > 404