use bib entry constructor that takes citation key in test case

Author: jinchat-joseph-yim

jabsrv/src/test/java/org/jabref/http/server/cayw/CAYWResourceTest.java

@@ -27,8 +27,7 @@ protected Application configure() {
         resourceConfig.register(new AbstractBinder() {
             @Override protected void configure() {
                 SrvStateManager mockSrv = Mockito.mock(SrvStateManager.class);
-                BibEntry bibEntry = new BibEntry();
-                bibEntry.setCitationKey("Author2023test");
+                BibEntry bibEntry = new BibEntry("Author2023test");
                 Mockito.when(mockSrv.getSelectedEntries()).thenReturn(FXCollections.observableArrayList(bibEntry));
                 bind(mockSrv).to(SrvStateManager.class);
             }