[BUG] Fixing compatibility with numpy 2

Author: Miguel de la Varga

gempy/_version.py

@@ -12,5 +12,5 @@
 __version_tuple__: VERSION_TUPLE
 version_tuple: VERSION_TUPLE
 
-__version__ = version = '2024.2.0'
-__version_tuple__ = version_tuple = (2024, 2, 0)
+__version__ = version = '2024.1.2.dev123+g7185b002.d20240625'
+__version_tuple__ = version_tuple = (2024, 1, 2, 'dev123', 'g7185b002.d20240625')

gempy/core/data/grid.py

@@ -32,8 +32,8 @@ class GridTypes(enum.Flag):
     _sections: Optional[Sections] = None
     _centered_grid: Optional[CenteredGrid] = None
 
-    values: np.ndarray = np.empty((0, 3))
-    length: np.ndarray = np.empty(0)
+    values: np.ndarray = dataclasses.field(default_factory=lambda: np.empty((0, 3)))
+    length: np.ndarray = dataclasses.field(default_factory=lambda: np.empty(0))
 
     _active_grids = GridTypes.NONE
     _transform: Optional[Transform] = None