Improve release process

Why is this change needed?
--------------------------
Ideally releasing uses docker to prevent environment issues.

How does it address the issue?
------------------------------
Add `script/release` to allowing scripting the process.

Any links to any relevant tickets, articles, or other resources?
---------------------------------------------------------------
https://3.basecamp.com/3093825/buckets/29124557/todos/5284412189
https://3.basecamp.com/3093825/buckets/29124557/todos/5284421778

Any screenshots?
----------------

Did you complete all of the following?
--------------------------------------
- Run test suite?
- Add new tests?
- Consider security implications and practices?

.docker_env.list

@@ -1,2 +1,3 @@
 TRACE
 TEST_OUTPUT_DIR=/app/tmp/test_output
+INSIDE_DOCKER=true

README.md

@@ -75,11 +75,9 @@ The generated client needed a few fixes
 7. Commit "Release version vX.Y.Z"
 8. Push to GitHub
 9. Tag version: `git tag 'vX.Y.Z' && git push --tags`
-10. Clean out any old packages `rm dist/*`
-11. Build packages `python setup.py sdist bdist_wheel`
-12. Upload packages `twine upload dist/*`
-13. Verify package release at https://pypi.python.org/pypi/docraptor
-14. Update documentation on docraptor.com
+10. `script/release`
+11. Verify package release at https://pypi.python.org/pypi/docraptor
+12. Update documentation on docraptor.com
 
 
 ## Version Policy

script/release

@@ -0,0 +1,29 @@
+#!/bin/bash
+set -e
+[[ "$TRACE" == "true" ]] && set -x
+cd "$(dirname "$0")/.."
+
+if [[ "$INSIDE_DOCKER" != "true" ]]; then
+  exec script/docker "/app/script/$(basename "$0")"
+fi
+
+echo "Clearing old packages..."
+[ -d dist ] && rm dist/*
+echo "Old packaged cleared."
+echo
+
+echo "Building packages..."
+# TODO: /usr/local/lib/python3.12/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
+python setup.py sdist bdist_wheel
+echo "Packages built."
+echo
+
+echo "Installing twine to allow publishing..."
+pip install --upgrade twine
+echo "Twine installed."
+echo
+
+echo "Publishing packages to pypi..."
+twine upload dist/*
+echo "Packages published."
+echo