As a follow-up of #440, this PR fixes setup.py for the new location of civis_api_spec.json. Locally, I've verified by creating and examining a source distribution tarball that this PR would correctly include the JSON file under civis/resources/.
[x] (For Civis employees only) Reference to a relevant ticket in the pull request title
[x] Changelog entry added to CHANGELOG.md at the repo's root level
[x] Description of change in the pull request description
As a follow-up of #440, this PR fixes
setup.pyfor the new location ofcivis_api_spec.json. Locally, I've verified by creating and examining a source distribution tarball that this PR would correctly include the JSON file undercivis/resources/.CHANGELOG.mdat the repo's root level