More updated status codes in the tests

Author: max-svistunov

tests/e2e/features/authorized_noop_token.feature

@@ -11,7 +11,7 @@ Feature: Authorized endpoint API tests for the noop-with-token authentication mo
      """
      {"placeholder":"abc"}
      """
-     Then The status code of the response is 400
+     Then The status code of the response is 401
       And The body of the response is the following
           """
             {"detail": "No Authorization header found"}

tests/e2e/features/conversations.feature

@@ -34,7 +34,7 @@ Feature: conversations endpoint API tests
     And I store conversation details
     And I remove the auth header
      When I access REST API endpoint "conversations" using HTTP GET method
-     Then The status code of the response is 400
+     Then The status code of the response is 401
      And The body of the response is the following
         """
         {
@@ -100,7 +100,7 @@ Feature: conversations endpoint API tests
     And I store conversation details
     And I remove the auth header
      When I use REST API conversation endpoint with conversation_id from above using HTTP GET method
-     Then The status code of the response is 400
+     Then The status code of the response is 401
      And The body of the response is the following
       """
       {

tests/e2e/features/feedback.feature

@@ -256,7 +256,7 @@ Feature: feedback endpoint API tests
             "user_question": "Sample Question"
         }
         """
-     Then The status code of the response is 400
+     Then The status code of the response is 401
      And The body of the response is the following
         """
         {
@@ -271,7 +271,7 @@ Feature: feedback endpoint API tests
     Given The system is in default state
     And I remove the auth header
      When The feedback is enabled
-     Then The status code of the response is 400
+     Then The status code of the response is 401
      And The body of the response is the following
         """
         {