docs: correct contributing test steps

[MikeMcC399]

Issue

When running test steps defined in CONTRIBUTING > Building locally, the command

docker compose run --rm test-factory-all-included

will use an image test-project-test-factory-all-included, if it exists from previous tests, to run new tests. This ignores parameters in factory/.env and so any changed parameters are not tested in this case, leading to unexpected results.

Change

In CONTRIBUTING > Building locally add the --build option to docker compose run, so the command becomes:

docker compose run --build --rm test-factory-all-included

This ensures that a new image test-project-test-factory-all-included is built if any parameters from factory/.env have changed. If no parameters have changed and the Docker cache has been preserved, the image will rebuild from cache.

[cypress-app-bot]

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