Plot not returning when specify x/y in axis_arguments for chunked NetCDF

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#### ALL software version info

- xarray
```
'2023.12.0'
```
- holoviews
```
'1.18.1'
```

#### Description of expected behavior and the observed behavior

When setting the `x` or `y` values in the arguments for `hvplot.line` the code hangs and never return

#### Complete, minimal, self-contained example code that reproduces the issue

```python
import xarray as xr
import holoviews as hv
import hvplot.xarray

hv.renderer('bokeh').webgl = False

test_url = "https://thredds.met.no/thredds/dodsC/met.no/observations/stations/SN99880.nc"
ds = xr.open_dataset(test_url)
var = 'air_temperature_2m'

# the following works:
axis_arguments = {'grid':True, 'title': 'title', 'widget_location': 'bottom', 'responsive': False}
ds[var].hvplot.line(**axis_arguments)

# When trying to set `x` or `y` values in the `**axis_arguments` for `hvplot.line` the code hangs and never return

axis_arguments = {'y': ds[var], 'grid':True, 'title': 'title', 'widget_location': 'bottom', 'responsive': False}
ds[var].hvplot.line(**axis_arguments)

# same for:

axis_arguments = {'x': ds[var], 'grid':True, 'title': 'title', 'widget_location': 'bottom', 'responsive': False}
ds[var].hvplot.line(**axis_arguments)
```

#### Stack traceback and/or browser JavaScript console output

```
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In[24], line 1
----> 1 ds[var].hvplot.line(**axis_arguments)

File /opt/conda/lib/python3.11/site-packages/hvplot/plotting/core.py:370, in hvPlotTabular.line(self, x, y, **kwds)
275 def line(self, x=None, y=None, **kwds):
276 """
277 The `line` plot connects the points with a continuous curve.
278
(...)
368 - Wiki: https://en.wikipedia.org/wiki/Line_chart
369 """
--> 370 return self(x, y, kind="line", **kwds)

File /opt/conda/lib/python3.11/site-packages/hvplot/plotting/core.py:93, in hvPlotBase.__call__(self, x, y, kind, **kwds)
91 return pn.panel(callback)
92 if panel_dict:
---> 93 plot = self._get_converter(x, y, kind, **kwds)(kind, x, y)
94 return pn.panel(plot, **panel_dict)
96 return self._get_converter(x, y, kind, **kwds)(kind, x, y)

File /opt/conda/lib/python3.11/site-packages/hvplot/plotting/core.py:103, in hvPlotBase._get_converter(self, x, y, kind, **kwds)
101 y = y or params.pop("y", None)
102 kind = kind or params.pop("kind", None)
--> 103 return HoloViewsConverter(self._data, x, y, kind=kind, **params)

File /opt/conda/lib/python3.11/site-packages/hvplot/converter.py:405, in HoloViewsConverter.__init__(self, data, x, y, kind, by, use_index, group_label, value_label, backlog, persist, use_dask, crs, fields, groupby, dynamic, grid, legend, rot, title, xlim, ylim, clim, symmetric, logx, logy, loglog, hover, subplots, label, invert, stacked, colorbar, datashade, rasterize, downsample, resample_when, row, col, debug, framewise, aggregator, projection, global_extent, geo, precompute, flip_xaxis, flip_yaxis, dynspread, hover_cols, x_sampling, y_sampling, project, tools, attr_labels, coastline, tiles, sort_date, check_symmetric_max, transforms, stream, cnorm, features, rescale_discrete_levels, autorange, **kwds)
403 self.value_label = value_label
404 self.label = label
--> 405 self._process_data(
406 kind, data, x, y, by, groupby, row, col, use_dask,
407 persist, backlog, label, group_label, value_label,
408 hover_cols, attr_labels, transforms, stream, kwds
409 )
411 self.dynamic = dynamic
412 self.geo = any([geo, crs, global_extent, projection, project, coastline, features])

File /opt/conda/lib/python3.11/site-packages/hvplot/converter.py:819, in HoloViewsConverter._process_data(self, kind, data, x, y, by, groupby, row, col, use_dask, persist, backlog, label, group_label, value_label, hover_cols, attr_labels, transforms, stream, kwds)
817 other_dims = []
818 da = data
--> 819 data, x, y, by_new, groupby_new = process_xarray(
820 data, x, y, by, groupby, use_dask, persist, gridded,
821 label, value_label, other_dims, kind=kind)
823 if kind not in self._stats_types:
824 if by is None: by = by_new

File /opt/conda/lib/python3.11/site-packages/hvplot/util.py:480, in process_xarray(data, x, y, by, groupby, use_dask, persist, gridded, label, value_label, other_dims, kind)
478 covered_dims = []
479 for var in all_vars:
--> 480 if var in dataset.coords:
481 covered_dims.extend(dataset[var].dims)
482 leftover_dims = [dim for dim in index_dims
483 if dim not in covered_dims + all_vars]

File /opt/conda/lib/python3.11/site-packages/xarray/core/coordinates.py:104, in AbstractCoordinates.__contains__(self, key)
103 def __contains__(self, key: Hashable) -> bool:
--> 104 return key in self._names

TypeError: unhashable type: 'DataArray'
```