v2.20.0

Changelog

• 1dfcf0c Brew formula update for stratus-red-team version v2.19.1 (#595)
• d57c508 New attack technique: Persistence through federation (#604)
• a912e7f New attack technique: Usage of SendSerialConsoleSSHPublicKey on multiple instances (#599)

New attack techniques:

• Usage of EC2 Serial Console to push SSH public key by @adanalvarez
• Generate temporary AWS credentials using GetFederationToken by @adanalvarez