added `@skip` to `test_metadata_to_nonexistent_grid()` so test_file_tools pass in circle
added `@skip` to `test_metadata_to_nonexistent_grid()` so
test_file_tools pass in circle

plotly/python-api,ee-in/python-api,plotly/python-api,ee-in/python-api,ee-in/python-api,plotly/plotly.py,plotly/plotly.py,plotly/plotly.py,plotly/python-api