Fixed server mode api test case failure.

web/pgadmin/browser/tests/test_reset_password.py

@@ -29,7 +29,7 @@ class ResetPasswordTestCase(BaseTestGenerator):
         # This test case validates the invalid/incorrect email field
         ('TestCase for Validating Invalid_Email', dict(
             email=str(uuid.uuid4())[1:8] + '@xyz.com',
-            respdata='Specified user does not exist')),
+            respdata='Incorrect username or password')),
 
         # This test case validates the valid email id
         ('TestCase for Validating Valid_Email', dict(