OZG-6858 move test block to GIVEN

vorgang-manager-server/src/test/java/de/ozgcloud/nachrichten/antragraum/AntragraumITCase.java

@@ -213,11 +213,11 @@ class AntragraumITCase {
 		@Test
 		void shouldReturnOnMatchingPostfachId() {
 			when(decrypter.decryptPostfachId(any())).thenReturn(PostfachAddressTestFactory.STRING_BASED_IDENTIFIER_POSTFACH_ID_VALUE);
-
 			var request = GrpcGetRueckfrageRequestTestFactory.createBuilder()
 					.setId(vorgangAttachedItem.getId())
 					.setSamlToken(TestUtils.loadTextFile("SamlResponse.xml"))
 					.build();
+
 			grpcService.getRueckfrage(request, responseObserver);
 
 			verify(responseObserver, timeout(30000)).onNext(captor.capture());