fix: yamllint

- [Based on](nautobot/nautobot-app-secrets-providers#100).
- Fixed invoke tasks:
  - Don't specify nautobot config for `invoke check-migrations`
- Arguments added to invoke tasks:
  - `invoke unittest --verbose`
  - `invoke tests --keepdb`
  - `invoke tests --lint-only`
- Removed obsolete environment variables:
  - `NAUTOBOT_DJANGO_EXTENSIONS_ENABLED`
  - `NAUTOBOT_DJANGO_TOOLBAR_ENABLED`
- Better organized `development/nautobot_config.py` file.
  - Removed unnecessary linter rules.
  - Moved `Debug` section to the top, to be easily reused.
  - Moved `Redis` section next to `Database` section.
  - Renamed `TESTING` to `_TESTING` as it's the local variable only.
  - Removed `RQ` related comments.
  - Renamed `plugin` => `App` in comments.
- Removed obsoleted commented out docker-compose postgres mount `nautobot.sql`.
- Alphabetically sorted requirements and removed obvious comments.
- Aligned nautobot-plugin and nautobot-plugin-ssot templates:
  - `development/nautobot_config.py`
  - invoke tasks
  - docs requirements and configuration

fix: Tasks formatting

fix: Use `plugin_slug` for compose project name

Update nautobot-plugin/{{ cookiecutter.project_slug }}/pyproject.toml

Co-authored-by: Christian Adell <chadell@gmail.com>

Address review feedback

Update docs links

Update link

Copy changes to ssot template

…/rebake.yml