[Feature] Upgrade production to heroku-22

[TimidRobot]

Problem

Production is currently on heroku-20

#132 (comment) excerpt:

remote: This app is using the Heroku-20 stack, however a newer stack is available.
remote: To upgrade to Heroku-22, see:
remote: https://devcenter.heroku.com/articles/upgrading-to-the-latest-stack

Description

Upgrade from heroku-20 to heroku-22.

Alternatives

Wait.

Additional context

• Upgrading to the Latest Stack | Heroku Dev Center

[TimidRobot]

Given the very simple nature of this app, I performed a minimal upgrade (no testing):

1. Configure app's Heroku stack

   heroku stack:set heroku-22

   Setting stack to heroku-22... done
   You will need to redeploy ⬢ fast-eyrie-10628 for the change to take effect.
   Run git push heroku main to trigger a new build on ⬢ fast-eyrie-10628.
   

2. Create an empty commit to trigger a new build

   git commit --allow-empty -m "Upgrading to heroku-22"

   [main 4b88408] Upgrading to heroku-2
   

3. Ensure origin is in sync

   git push

   Enumerating objects: 1, done.
   Counting objects: 100% (1/1), done.
   Writing objects: 100% (1/1), 894 bytes | 894.00 KiB/s, done.
   Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
   To github.com:creativecommons/legaldb.git
      aed3adf..4b88408  main -> main
   

4. Push to production to create a new release

   git push heroku main

   Enumerating objects: 1, done.
   Counting objects: 100% (1/1), done.
   Writing objects: 100% (1/1), 894 bytes | 894.00 KiB/s, done.
   Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
   remote: Compressing source files... done.
   remote: Building source:
   remote: 
   remote: -----> Building on the Heroku-22 stack
   remote: -----> Using buildpack: heroku/python
   remote: -----> Python app detected
   remote: -----> Using Python version specified in Pipfile.lock
   remote: -----> Stack has changed from heroku-20 to heroku-22, clearing cache
   remote: cp: cannot stat '/tmp/build_1b7978fb/requirements.txt': No such file or directory
   remote: -----> Installing python-3.10.6
   remote: -----> Installing pip 22.1.2, setuptools 60.10.0 and wheel 0.37.1
   remote: -----> Installing dependencies with Pipenv 2020.11.15
   remote:        Installing dependencies from Pipfile.lock (4e162e)...
   remote: -----> Installing SQLite3
   remote: -----> $ python manage.py collectstatic --noinput
   remote:        397 static files copied to '/tmp/build_1b7978fb/staticfiles', 705 post-processed.
   remote: 
   remote: -----> Discovering process types
   remote:        Procfile declares types -> release, web
   remote: 
   remote: -----> Compressing...
   remote:        Done: 59.7M
   remote: -----> Launching...
   remote:  !     Release command declared: this new release will not be available until the command succeeds.
   remote:        Released v31
   remote:        https://fast-eyrie-10628.herokuapp.com/ deployed to Heroku
   remote: 
   remote: Verifying deploy... done.
   remote: Running release command...
   remote: 
   remote: Operations to perform:
   remote:   Apply all migrations: admin, auth, contenttypes, legal_db, sessions, taggit
   remote: Running migrations:
   remote:   No migrations to apply.
   remote: Waiting for release.... done.
   To https://git.heroku.com/fast-eyrie-10628.git
      aed3adf..4b88408  main -> main
   

5. Manual Q&A
   • ✅ looks good