Depend on latest version of xarray (#109)

* depend on xarray>=v2024.5.0

* remove note about needing special branch of xarray

Author: TomNicholas

docs/installation.md

@@ -8,8 +8,6 @@ cd VirtualiZarr
 pip install -e .
 ```
 
-You will also need a specific branch of xarray in order for concatenation without indexes to work. (See [this comment](https://github.com/TomNicholas/VirtualiZarr/issues/14#issuecomment-2018369470).)
-
 
 ## Install Test Dependencies
 

pyproject.toml

@@ -22,7 +22,7 @@ classifiers = [
 requires-python = ">=3.9"
 dynamic = ["version"]
 dependencies = [
-    "xarray@git+https://github.com/pydata/xarray.git@main#egg=xarray",
+    "xarray>=2024.5.0",
     "kerchunk>=0.2.5",
     "h5netcdf",
     "pydantic",