0.6.0

• Add docs about installing and pinning dependencies. PR #41.
• Add slim version. PR #40.
• Remove leftover unneeded config for tests. PR #39.
• Add extra configs, tests, and docs for:
  • WORKER_CLASS
  • TIMEOUT
  • KEEP_ALIVE
  • GRACEFUL_TIMEOUT
  • ACCESS_LOG
  • ERROR_LOG
  • GUNICORN_CMD_ARGS
  • MAX_WORKERS
  • PR #38
• Set up CI using GitHub actions, they provide more free instances, so builds finish faster (4 min vs 9 min). PR #37.
• Add support for Python 3.8. PR #36.
• Refactor tests to remove custom testing Dockerfiles, generate them during tests. PR #35.
• Refactor and simplify build process to reduce code duplication. PR #34.
• Disable pip cache during installation with --no-cache-dir. PR #13 by @pmav99.
• Migrate local development from Pipenv to Poetry. PR #31.
• Add tests and docs for custom PRE_START_PATH env var. PR #30.
• Add support for custom PRE_START_PATH env var. PR #12 by @mgfinch.