switch GarageDoor to LeakageSemantics #802

Job	Run time
docker-master	1h 29m 45s
publish-standalone-dry-run	18s
test-standalone (master, dev, default)	1m 22s
build-js-of-ocaml (master, 4.11.1)	5m 44s
build-wasm-of-ocaml (master, 4.14.1)	17m 11s
generated-files (master)	23m 6s
standalone-haskell (master)	46m 0s
test-amd64	2h 15m 21s
validate-docker-master	2m 25s
deploy-js-wasm-of-ocaml	28s
docker-check-all	1s
	5h 21m 41s

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