Fix deployment to PyPI: wrong org name

The GitHub org name was wrong. Fix it so the script can deploy.

.github/workflows/pypi.yml

@@ -82,7 +82,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     # Only publish from the origin repository, not forks
-    if: github.repository_owner == 'compgeolab' && github.event_name != 'pull_request'
+    if: github.repository_owner == 'fatiando' && github.event_name != 'pull_request'
     environment: pypi
     permissions:
       # This permission allows trusted publishing to PyPI (without an API token)