OZG-1528 fix test - add missing claim

goofy-server/src/test/java/de/itvsh/goofy/common/downloadtoken/DownloadTokenServiceTest.java

@@ -113,8 +113,11 @@ class DownloadTokenServiceTest {
 
 		private void mockClaims(String firstnameClaim, String lastnameClaim) {
 			Claims claims = mock(Claims.class);
+
 			when(claims.get(FIRSTNAME_CLAIM, String.class)).thenReturn(firstnameClaim);
 			when(claims.get(LASTNAME_CLAIM, String.class)).thenReturn(lastnameClaim);
+			when(claims.get(USERID_CLAIM, String.class)).thenReturn(UserTestFactory.ID.toString());
+
 			when(jwtTokenUtil.getOrganisationseinheitIdsFromToken(any())).thenReturn(ORGE_IDS);
 			when(jwtTokenUtil.getAllClaimsFromToken(any())).thenReturn(Optional.of(claims));
 		}