support for non-public AWS regions (e.g. GovCloud)

Change `AuthMethod` parameter to `FormsAuthentication`

fixing username and password disclosure and

authentication with cookies on non-windows system

Default SSPI to True on Windows only, False otherwise

dropped botocore dependency

pdecat: Document new libkrb5-dev system dependency for pykerberos

released:

- Kerberos support
- Duo: support U2F with no preferred factor or device configured

released Pin fido2 dependency to < 0.8.0 as it is a breaking release …

…and U2F: fido2 v0.8.1 compatibility (U2FClient.sign timeout renamed to event)

pdcat introduced: Do not print stack trace if no U2F device is available

creadits for pdecat for

Add options to trigger or not the default authentication method when U2F is available
and Fix AttributeError: 'generator' object has no attribute 'append' on python3