Make mask_dict_password case insensitive and add new patterns
In Icc19b7c8bdb6a3182939d5e9fdef21288b19f43d mask_password was made case
insensitive but mask_dict_password wasn't. This update makes the
behaviour of these functions the same.
Instead of lowering _SANITIZE_KEYS each time the source list is lowered.
New password patterns from realworld logs were added to the patterns.
(cherry picked from commit