Migrate to assertEqual (#6741)

Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>

test/srt/test_two_batch_overlap.py

@@ -56,7 +56,7 @@ class TestTwoBatchOverlap(unittest.TestCase):
             },
         )
         print(f"{response.json()=}")
-        self.assertEquals(response.json()["text"], "5, 1+5=6")
+        self.assertEqual(response.json()["text"], "5, 1+5=6")
 
     def test_mmlu(self):
         args = SimpleNamespace(