v5.4.0

[5.4.0] - 2022-08-16

Added

• Added support for OIDC V2 authentication endpoint.
  cyberark/cojnur-api-ruby#207
• Added support for OIDC authenticator providers endpoint.
  cyberark/cojnur-api-ruby#207

Changed

• Remove support for Ruby versions <2.7 which are end of life.
  cyberark/conjur-api-ruby#206
• Adding operation call to fetch authentication providers
  cyberark/conjur-api-ruby#206