Merge branch 'OZG-4094-Senden-von-Nachrichten-Fix' into 'main'

pom.xml

.../nachrichten/postfach/osiv2/OsiPostfachRemoteService.java

...richten/postfach/osiv2/config/ApiClientConfiguration.java

...richten/postfach/osiv2/config/Osi2PostfachProperties.java

...achrichten/postfach/osiv2/transfer/Osi2RequestMapper.java

...chrichten/postfach/osiv2/transfer/Osi2ResponseMapper.java

...ten/postfach/osiv2/transfer/PostfachApiFacadeService.java

src/main/resources/application-stage.yml

src/main/resources/application.yml

...ichten/postfach/osiv2/OsiPostfachRemoteServiceITCase.java

.../postfach/osiv2/OsiPostfachRemoteServiceRemoteITCase.java

...hrichten/postfach/osiv2/OsiPostfachRemoteServiceTest.java

...de/ozgcloud/nachrichten/postfach/osiv2/extension/Jwt.java

...hten/postfach/osiv2/extension/OsiMockServerExtension.java

...ozgcloud/nachrichten/postfach/osiv2/factory/JsonUtil.java

...iv2/factory/MessageExchangeReceiveMessageTestFactory.java

...ry/MessageExchangeReceiveMessagesResponseTestFactory.java

...actory/MessageExchangeSendMessageResponseTestFactory.java

...en/postfach/osiv2/factory/PostfachAddressTestFactory.java

...ten/postfach/osiv2/factory/V1ReplyMessageTestFactory.java