Pin before loud dask.dataframe deprecation warning (#29)

- This rolls back the changes in
#25 until we have
a plan to deal with the loud `dask.dataframe` deprecation warning in
`dask>=2024.2.0`
- This adds `dask_expr` as a dependency in preparation for
rapidsai/cudf#14805 (happy to add this in a
follow-up PR if others prefer)
- We may be able to remove the pin for 24.04 if/when
#27 is merged
(fingers crossed). However, the *default* plan is still to keep the
2024.1.1 dask pin in place until 24.06 (see:
#26)

conda/recipes/rapids-dask-dependency/meta.yaml

@@ -15,9 +15,10 @@ build:
 
 requirements:
   run:
-    - dask >=2024.1.1
-    - dask-core >=2024.1.1
-    - distributed >=2024.1.1
+    - dask ==2024.1.1
+    - dask-core ==2024.1.1
+    - distributed ==2024.1.1
+    - dask-expr ==0.4.0
 
 about:
   home: https://rapids.ai/

pip/rapids-dask-dependency/pyproject.toml

@@ -12,8 +12,9 @@ name = "rapids-dask-dependency"
 version = "24.04.00a0"
 description = "Dask and Distributed version pinning for RAPIDS"
 dependencies = [
-    "dask @ git+https://github.com/dask/dask.git@main",
-    "distributed @ git+https://github.com/dask/distributed.git@main",
+    "dask==2024.1.1",
+    "distributed==2024.1.1",
+    "dask-expr==0.4.0",
 ]
 license = { text = "Apache 2.0" }
 readme = { file = "README.md", content-type = "text/markdown" }