Avoid inplace=True for set_levels

This argument was deprecated in Pandas 1.2 and removed in 2.0
https://pandas.pydata.org/pandas-docs/version/1.5/reference/api/pandas.MultiIndex.set_levels.html
pandas-dev/pandas#35626

Author: maxwell-k

qgrid/grid.py

@@ -1318,7 +1318,7 @@ def _set_col_series_on_df(self, col_name, df, col_series):
             if len(self._primary_key) > 1:
                 key_index = self._primary_key.index(col_name)
                 prev_name = df.index.levels[key_index].name
-                df.index.set_levels(col_series, level=key_index, inplace=True)
+                df.index = df.index.set_levels(col_series, level=key_index)
                 df.index.rename(prev_name, level=key_index, inplace=True)
             else:
                 prev_name = df.index.name