chore(main): release jans-config-api 1.0.21

[mo-auto]

🤖 I have created a release beep boop

1.0.21 (2023-12-14)

Features

• add message configuration api to config-api #6982 (#6983) (945ba76)
• agama: use a mixed strategy for serialization (#6883) (00aee0c)
• config-api: new endpoint to fetch feature flag except UNKOWN (#6779) (cba403b)
• idp-plugin: inbound SAML with Keycloak as SP and external SAML IDP (#6793) (bc5eaad)
• jans-config: changes to merge config-idp-plugin merged with config-saml-plugin (#6921) (86e71c9)
• kc-saml-plugin: cleanup and error handling (#7054) (7fcea4f)
• kc-saml-plugin: saml enhancement for validation (#6949) (ba07f32)
• replace jwt token with reference token to access config-api (admin ui plugin) #6562 (#6587) (7f82250)

Bug Fixes

• API spec metadata (#6473) (3922ddb)
• config-api: hide authenticationMethod client model utility method #7061 (#7063) (66cea41)
• config-api: json build issue and saml plugin swagger spec annotation (#6582) (5ece7a9)
• config-api: made clientId optional for TR and customScript changes for returning types (#6617) (9c59a06)
• kc-saml-plugin: error while updating SAML TR (#6974) (ad3041d)
• kc-saml-plugin: metadata file type in Openi API spec incorrect (#7059) (9bd73ce)
• openapi spec version element (#6780) (e4aca8c)
• prepare for 1.0.21 release (#7008) (2132de6)

Documentation

• config-api: auth featureFlags should be described as enum in spec (#6590) (fdf33c1)
• config-api: issue 6382 - regen spec to reflect new fields in ClientAttributes (#6566) (592f186)
• saml-plugin: saml swagger spec rectification (#6605) (6c82728)

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[mo-auto]

🤖 Release is at https://github.com/JanssenProject/jans/releases/tag/jans-config-api-v1.0.21 🌻