text: Title: BUG: GeoDataFrame.iterfeatures with na='drop' crashes on non-scalar columns
  Body: - [x] I have checked that this issue has not already been reported.
  
  - [x] I have confirmed this bug exists on the latest version of geopandas.
  
  - [x] (optional) I have confirmed this bug exists on the main branch of geopandas.
  
  ---
  
  #### Code Sample, a copy-pastable example
  
  ```python
  import geopandas
  gdf = geopandas.GeoDataFrame(dict(geometry=geopandas.GeoSeries.from_wkt(['POINT EMPTY']), test=[[1, 2]]))
  print(list(gdf.iterfeatures(na='drop')))
  ```
  
  #### Problem description
  
  The code crashes with 
  ```
  Traceback (most recent call last):
    File "<ipython-input-49-8489f3b42ff4>", line 1, in <module>
      list(gdf.iterfeatures(na='drop'))
    File "/home/nofitserov/.cache/pypoetry/virtualenvs/test-RPhZg3RA-py3.9/lib/python3.9/site-packages/geopandas/geodataframe.py", line 885, in iterfeatures
      properties_items = {
    File "/home/nofitserov/.cache/pypoetry/virtualenvs/test-RPhZg3RA-py3.9/lib/python3.9/site-packages/geopandas/geodataframe.py", line 886, in <dictcomp>
      k: v for k, v in zip(properties_cols, row) if not pd.isnull(v)
  ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
  ```
  due to auto-magic type confusion in this code:
  ```python
                  if na == "drop":
                      properties_items = {
                          k: v for k, v in zip(properties_cols, row) if not pd.isnull(v)
                      }
  ```
  When `v` is not a pandas scalar with len>1, `pd.isnull` returns a boolean array instead of a single value, breaking the logic completely. I think that explicitly excluding non-scalars from this check should help, as they should never be dropped here?
  
  #### Expected Output
  ```
  [{'id': '0', 'type': 'Feature', 'properties': {'test': [1, 2]}, 'geometry': None}]
  ```
  
  
  #### Output of ``geopandas.show_versions()``
  
  <details>
  
  SYSTEM INFO
  -----------
  python     : 3.9.9 (main, Nov 19 2021, 00:00:00)  [GCC 10.3.1 20210422 (Red Hat 10.3.1-1)]
  executable : /home/nofitserov/.cache/pypoetry/virtualenvs/test-RPhZg3RA-py3.9/bin/python
  machine    : Linux-5.14.18-100.fc33.x86_64-x86_64-with-glibc2.32
  
  GEOS, GDAL, PROJ INFO
  ---------------------
  GEOS       : 3.11.1
  GEOS lib   : None
  GDAL       : 3.4.3
  GDAL data dir: /home/nofitserov/.cache/pypoetry/virtualenvs/test-RPhZg3RA-py3.9/lib64/python3.9/site-packages/fiona/gdal_data
  PROJ       : 9.1.0
  PROJ data dir: /home/nofitserov/.cache/pypoetry/virtualenvs/test-RPhZg3RA-py3.9/lib64/python3.9/site-packages/pyproj/proj_dir/share/proj
  
  PYTHON DEPENDENCIES
  -------------------
  geopandas  : 0.12.2
  numpy      : 1.23.5
  pandas     : 1.5.2
  pyproj     : 3.4.1
  shapely    : 2.0.0
  fiona      : 1.8.22
  geoalchemy2: None
  geopy      : None
  matplotlib : 3.6.2
  mapclassify: 2.4.3
  pygeos     : None
  pyogrio    : v0.4.2
  psycopg2   : None
  pyarrow    : 10.0.1
  rtree      : None
  
  
  </details>
  