meta_data attribute

[Sup3rGeo]

Hi,

I am trying to list builds based on the value of meta_data variables:

builds = buildkite.builds().list_all_for_pipeline(org_name,
                                                  pipeline_name,
                                                  meta_data={'origin_id': 0}
                                                  )

but it seems that pybuildkite is building the url as ...?metadata={'origin':0}&... instead of ...?metadata[origin]=0&... as defined in Buildkite API documentation.

I checked the unit tests but there doesn't seem to have anything using it.

If this is indeed a bug I would be happy to make a PR to fix it.

[pyasi]

Thanks for the ticket and following PR, I'll take a look as soon as I have time time @Sup3rGeo