Use this script to update tests/support/heartwood-version and keep the
flake in sync with it.
Alternatively, run the script as
scripts/update-flake $(cat tests/support/heartwood-version)
to bring the flake back into sync.
This also updates the flake.lock and the updates the state of the npm
dependencies when run from a nix-enabled system.
Includes the twemoji assets and a check output that runs all tests
except e2e.
Updates to test/support/heartwood-version must also be reflected in
flake.nix in inputs.heartwood.url.
Sebastian Martinez