Suppress W0201 error where attribute is set in __new__.
Suppress W0201 error where attribute is set in __new__.

See commit 94785c33564f7999172539b87f01a2e87baad926 for an explanation of
the reason for setting id in __new__.

Signed-off-by: mulhern <7b51bcf507bcd7afb72bf8663752c0ddbeb517f6@redhat.com>

vojtechtrefny/blivet,vojtechtrefny/blivet,rhinstaller/blivet,AdamWill/blivet,jkonecny12/blivet,rvykydal/blivet,jkonecny12/blivet,vpodzime/blivet,vpodzime/blivet,dwlehman/blivet,AdamWill/blivet,dwlehman/blivet,rhinstaller/blivet,rvykydal/blivet