Add polars to "all" dependency list. (#16875)

This adds Polars to the "all" dependency list, ensuring that devcontainers and developers using the conda environment can use the Polars GPU backend provided by cudf.

Authors:
  - Bradley Dice (https://github.com/bdice)
  - GALI PREM SAGAR (https://github.com/galipremsagar)

Approvers:
  - Vyas Ramasubramani (https://github.com/vyasr)
  - GALI PREM SAGAR (https://github.com/galipremsagar)

URL: #16875

conda/environments/all_cuda-118_arch-x86_64.yaml

@@ -65,6 +65,7 @@ dependencies:
 - pandas
 - pandas>=2.0,<2.2.3dev0
 - pandoc
+- polars>=1.8,<1.9
 - pre-commit
 - ptxcompiler
 - pyarrow>=14.0.0,<18.0.0a0

conda/environments/all_cuda-125_arch-x86_64.yaml

@@ -63,6 +63,7 @@ dependencies:
 - pandas
 - pandas>=2.0,<2.2.3dev0
 - pandoc
+- polars>=1.8,<1.9
 - pre-commit
 - pyarrow>=14.0.0,<18.0.0a0
 - pydata-sphinx-theme!=0.14.2

dependencies.yaml

@@ -25,6 +25,7 @@ files:
       - rapids_build_setuptools
       - run_common
       - run_cudf
+      - run_cudf_polars
       - run_pylibcudf
       - run_dask_cudf
       - run_custreamz