Remove some known warning

Author: AntSimi

src/py_eddy_tracker/observations/observation.py

@@ -1794,7 +1794,8 @@ def bins_stat(self, xname, bins=None, yname=None, method=None, mask=None):
             y_v = self[yname] if isinstance(yname, str) else yname
             y_v = y_v[mask]
             y_, _ = histogram(v, bins=bins, weights=y_v)
-            y = y_ / y
+            with errstate(divide="ignore", invalid="ignore"):
+                y = y_ / y
         return x, y
 
     def format_label(self, label):

src/py_eddy_tracker/observations/tracking.py

@@ -28,7 +28,7 @@
 )
 from Polygon import Polygon
 
-from .. import VAR_DESCR_inv
+from .. import VAR_DESCR_inv, __version__
 from ..generic import build_index, cumsum_by_track, distance, split_line, wrap_longitude
 from ..poly import create_vertice_from_2darray, merge, polygon_overlap
 from .observation import EddiesObservations
@@ -212,6 +212,7 @@ def set_global_attr_netcdf(self, h_nc):
         h_nc.Metadata_Conventions = "Unidata Dataset Discovery v1.0"
         h_nc.comment = "Surface product; mesoscale eddies"
         h_nc.framework_used = "https://github.com/AntSimi/py-eddy-tracker"
+        h_nc.framework_version = __version__
         h_nc.standard_name_vocabulary = (
             "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table"
         )