VED-457: reponse header

Author: Akol125

e2e/test_update_immunization.py

@@ -31,7 +31,7 @@ def test_update_imms(self):
 
                     # Then
                     self.assertEqual(response.status_code, 200, response.text)
-                    self.assertEqual(response["headers"]["E-Tag"], 2)
+                    self.assertEqual(int(response.headers["E-Tag"]), 2)
                     self.assertNotIn("Location", response.headers)
 
     def test_update_non_existent_identifier(self):