Update docker/github-builder to v1.4.0

Fixes template validation error in CI by updating to latest stable version
of docker/github-builder workflow. This resolves the JToken parsing error
in bake.yml@v1 that was causing bin-image-test to fail.

Signed-off-by: maks2134 <[email protected]>

Fix panic when watch rebuilds without up

Signed-off-by: Max Proske <[email protected]>