Pin transformers/tokenizers for ML tests (#38291)

Author: aIbrahiim

.github/trigger_files/beam_PreCommit_Python_ML.json

@@ -0,0 +1,4 @@
+{
+  "comment": "Modify this file in a trivial way to cause this test suite to run",
+  "revision": 3
+}

sdks/python/setup.py

@@ -199,7 +199,10 @@ def cythonize(*args, **kwargs):
     # `cls_token=` or tokenizers reinstates `cls=` as a deprecation alias.
     'tokenizers<0.23',
     'torch',
-    'transformers',
+    # Match tested transformers range.
+    'transformers>=4.28.0,<4.56.0',
+    # Keep tokenizers compatible with this transformers range.
+    'tokenizers>=0.13.3,<0.22.0',
 ]
 
 ml_adk_dependency = [