Feature/gh 1399 remove review outcome

Feature/demo bugfix

Bump djangorestframework-api-key from 1.3.0 to 1.4.1

Bumps [djangorestframework-api-key](https://github.com/florimondmanca/djangorestframework-api-key) from 1.3.0 to 1.4.1.
- [Release notes](https://github.com/florimondmanca/djangorestframework-api-key/releases)
- [Changelog](https://github.com/florimondmanca/djangorestframework-api-key/blob/master/CHANGELOG.md)
- [Commits](https://github.com/florimondmanca/djangorestframework-api-key/compare/v1.3.0...v1.4.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

1. ensure that submitted reports are still considered in the submitted last
report
2. improve a flaky test to actually search for a value that is present

Convert the test staticfile storage to not be manifest

This avoids the need to collect static files as part of the testing process
locally and in CI.

However - recommend updating CI to run collect static with the production
settings to ensure that all static files are present

General test performance tweaks

Implement workflows for Circle CI

Switch to dart sass for compilation

Centralise linting commands in the makefile

Exclude the venv dir from flake8, we are only intereseted in lining o…

- Only load truetype fonts when make_pdf is first called - affect first test run
- Use the basic md5 hash to avoid expensive has calcs with better hasher
  - ~40% test speed up when there are users involved

- Add missing PHONY definition for `help`
- Add `lint` command to run both isort and flake8
- Add `style` command to run flake8
- Rename `fix` to `sort-fix` to fix the isort errors
- Remove exit code from `sort` as it hid errors and emits error codes anyway

Update python runtime to 3.6.10.

Dart-sass is the primary implementation of sass and it provides a pure js
package which is easier for developers to work with and doesn't need the
compilation step that node-sass needs for libsass