Bump rewriter from `30c8507` to `69cccb7` #782

Job	Run time
docker-master	1h 30m 4s
publish-standalone-dry-run	18s
test-standalone (master, dev, default)	1m 29s
build-wasm-of-ocaml (master, 4.14.1)	20m 34s
build-js-of-ocaml (master, 4.11.1)	8m 54s
validate-docker-master	2m 26s
generated-files (master)	24m 4s
standalone-haskell (master)	46m 17s
test-amd64	2h 22m 26s
deploy-js-wasm-of-ocaml	44s
docker-check-all	1s
	5h 37m 17s

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