Revert "[revert] test with Xarray PR branch"

This reverts commit 4a59ffa.

.github/workflows/ci.yaml

@@ -99,7 +99,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
-          repository: "dcherian/xarray"
+          repository: "pydata/xarray"
           fetch-depth: 0 # Fetch all history for all branches and tags.
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v1
@@ -113,7 +113,6 @@ jobs:
             pint>=0.22
       - name: Install xarray
         run: |
-          git checkout flox-preserve-dtype
           python -m pip install --no-deps .
       - name: Install upstream flox
         run: |

ci/environment.yml

@@ -19,12 +19,11 @@ dependencies:
   - pytest-pretty
   - pytest-xdist
   - syrupy
+  - xarray
   - pre-commit
   - numpy_groupies>=0.9.19
   - pooch
   - toolz
   - numba
   - numbagg>=0.3
   - hypothesis
-  - pip:
-      - git+https://github.com/dcherian/xarray.git@flox-preserve-dtype