Update oldest deps for pyarrow & numpy

[galipremsagar]

Description

We recently pinned our dask-expr version to 1.1.14: rapidsai/rapids-dask-dependency#64, that plus latest dask seems to be having a minimum requirement for pyarrow as 14.0.1. This is causing failures in our CI matrix while running tests with the oldest dependencies. This PR bumps the minimum pyarrow version in our oldest deps.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[vyasr]

It looks like the current installation in the conda testing scripts is too broad. Let's change test_python_common to accept the file_key as an argument that we can pass here, then make separate groups for test_python_cudf and test_python_other.

[galipremsagar]

It looks like the current installation in the conda testing scripts is too broad. Let's change test_python_common to accept the file_key as an argument that we can pass here, then make separate groups for test_python_cudf and test_python_other.

Done 👍

[galipremsagar]

/merge

[vyasr]

Thanks Prem!

[galipremsagar]

Thanks Prem!

Thank you for helping me in getting this out!