feature(#484): Maven Central deployment

.gitlab-ci.yml

.m2/release.xml

api/pom.xml

...va/dev/fitko/fitconnect/api/config/ApplicationConfig.java

...ain/java/dev/fitko/fitconnect/api/config/Environment.java

...java/dev/fitko/fitconnect/api/config/EnvironmentName.java

...n/java/dev/fitko/fitconnect/api/config/ResourcePaths.java

...in/java/dev/fitko/fitconnect/api/config/SenderConfig.java

...ava/dev/fitko/fitconnect/api/config/SubscriberConfig.java

...java/dev/fitko/fitconnect/api/domain/auth/OAuthToken.java

...nect/api/domain/model/destination/ContactInformation.java

.../fitconnect/api/domain/model/destination/Destination.java

...nect/api/domain/model/destination/DestinationService.java

...nnect/api/domain/model/destination/PublicDestination.java

...fitconnect/api/domain/model/destination/ReplyChannel.java

...nnect/api/domain/model/destination/ReplyChannelEMail.java

...o/fitconnect/api/domain/model/destination/StatusEnum.java

...dev/fitko/fitconnect/api/domain/model/event/EventLog.java

...va/dev/fitko/fitconnect/api/domain/model/jwk/AlgEnum.java

...java/dev/fitko/fitconnect/api/domain/model/jwk/EEnum.java