CI: update use of deprecated iteritems to avoid warnings (#2316)

geopandas/geoseries.py

@@ -913,7 +913,7 @@ class GeoSeries(GeoPandasBase, Series):
 
         index = []
         geometries = []
-        for idx, s in self.geometry.iteritems():
+        for idx, s in self.geometry.items():
             if s.type.startswith("Multi") or s.type == "GeometryCollection":
                 geoms = s.geoms
                 idxs = [(idx, i) for i in range(len(geoms))]

geopandas/testing.py

@@ -316,7 +316,7 @@ def assert_geodataframe_equal(
     )
 
     # geometry comparison
-    for col, dtype in left.dtypes.iteritems():
+    for col, dtype in left.dtypes.items():
         if isinstance(dtype, GeometryDtype):
             assert_geoseries_equal(
                 left[col],