Fix a typo

Author: seisman

pygmt/clib/session.py

@@ -1787,7 +1787,7 @@ def virtualfile_in(
         check_kind : str or None
             Used to validate the type of data that can be passed in. Choose
             from 'raster', 'vector', or None. Default is None (no validation).
-        data : str or pathlib.Path or xarray.DataArray or {table-like} or dict | None
+        data : str or pathlib.Path or xarray.DataArray or {table-like} or dict or None
             Any raster or vector data format. This could be a file name or
             path, a raster grid, a vector matrix/arrays, or other supported
             data input.