decorate all components with xattree (#123)

and update uv/pixi envs to get the latest xattree fixes. for now it requires decorating all classes in the hierarchy. eventually it might get a shortcut to apply to all subclasses.

Author: wpbonelli

flopy4/mf6/exchange.py

@@ -1,13 +1,12 @@
 from pathlib import Path
 from typing import Optional
 
-from attrs import define
-from xattree import field
+from xattree import field, xattree
 
 from flopy4.mf6.package import Package
 
 
-@define
+@xattree
 class Exchange(Package):
     exgtype: type = field()
     exgfile: Path = field()

flopy4/mf6/model.py

@@ -1,8 +1,8 @@
-from attrs import define
+from xattree import xattree
 
 from flopy4.mf6.component import Component
 
 
-@define
+@xattree
 class Model(Component):
     pass

flopy4/mf6/package.py

@@ -1,8 +1,8 @@
-from attrs import define
+from xattree import xattree
 
 from flopy4.mf6.component import Component
 
 
-@define
+@xattree
 class Package(Component):
     pass

flopy4/mf6/solution.py

@@ -1,8 +1,8 @@
-from attrs import define
+from xattree import xattree
 
 from flopy4.mf6.package import Package
 
 
-@define
+@xattree
 class Solution(Package):
     pass