Revert change to "sed" command in deploy workflow (#64)

In #59, we inadvertently reverted the `sed` command in the `deploy`
workflow to the versioneer version. This reintroduces the correct
command from #61.

.github/workflows/deploy.yml

@@ -64,11 +64,10 @@ jobs:
 
       - name: Build source and wheel distributions
         run: |
-          # Change the versioneer format to "pre" so that the commit hash isn't
-          # included (PyPI doesn't allow it). Can't do this permanently because
-          # we rely the hash to indicate to the tests that this is a local
-          # verison instead of a published version.
-          sed --in-place "s/pep440/pep440-pre/g" setup.cfg
+          # Change setuptools-scm local_scheme to "no-local-version" so the
+          # local part of the version isn't included, making the version string
+          # compatible with Test PyPI.
+          sed --in-place "s/node-and-date/no-local-version/g" setup.py
           nox -s build -- list-packages
           echo ""
           echo "Generated files:"