Updating pyarrow dependency for tfx libs to ">=6,<7".

PiperOrigin-RevId: 467044374

Author: iindyk

RELEASE.md

@@ -11,6 +11,7 @@
     resource hints is to prevent root Reads that are generated from deep copy
     being merged due to common subexpression elimination.
 *   Depends on `apache-beam[gcp]>=2.40,<3`.
+*   Depends on `pyarrow>=6,<7`.
 
 ## Breaking Changes
 

setup.py

@@ -46,7 +46,7 @@ def _make_required_install_packages():
       'apache-beam[gcp]>=2.40,<3',
       'numpy>=1.16,<2',
       'protobuf>=3.13,<4',
-      'pyarrow>=1,<6',
+      'pyarrow>=6,<7',
       'pydot>=1.2,<2',
       # pylint: disable=line-too-long
       'tensorflow' + select_constraint(