Fix delete response assertion to expect NO_CONTENT status

Author: dk-emag

basyx.aasrepository/basyx.aasrepository-http/src/test/java/org/eclipse/digitaltwin/basyx/aasrepository/http/AasRepositoryHTTPSuite.java

@@ -280,7 +280,7 @@ public void removeSubmodelReference() throws FileNotFoundException, IOException,
 		CloseableHttpResponse deleteResponse = BaSyxHttpTestUtils.executeDeleteOnURL(url);
 		CloseableHttpResponse getResponse = BaSyxHttpTestUtils.executeGetOnURL(getSpecificAasSubmodelRefAccessURL(dummyAasId));
 
-		assertEquals(200, deleteResponse.getCode());
+		assertEquals(204, deleteResponse.getCode());
 
 		String response = BaSyxHttpTestUtils.getResponseAsString(getResponse);
 		BaSyxHttpTestUtils.assertSameJSONContent(getSMReferenceRemovalJson(), getJSONWithoutCursorInfo(response));