chore: add fast mode to run-smoke-tests script #6

Job	Run time
Run 'builder-docker-image.yml' workflow / Build base image	1m 7s
Build CLI (aarch64-apple-darwin)	6m 24s
Build CLI (aarch64-unknown-linux-gnu)	4m 42s
Run lints	1m 42s
Run unit tests	2m 13s
Build CLI (aarch64-unknown-linux-musl)	5m 17s
Build CLI (x86_64-apple-darwin)	6m 12s
Build CLI (x86_64-pc-windows-gnu)	6m 1s
Build CLI (x86_64-unknown-linux-gnu)	8m 13s
Build CLI (x86_64-unknown-linux-musl)	5m 48s
Check that autogenerated CLI documentation is up-to-date	5s
Run smoke tests (linux)	8m 11s
Run Linux distros compatibility test	1m 20s
Publish to Docker Hub	0s
Publish to GitHub Releases	0s
	57m 15s

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