Bump rewriter from `21b82e9` to `1cd64f2` (#1840) #409

Job	Run time
docker-master	1h 40m 39s
publish-standalone-dry-run	18s
test-standalone (master, dev, default)	1m 34s
validate-docker-master	34m 47s
build-js-of-ocaml (master, 4.11.1)	14m 23s
build-wasm-of-ocaml (master, 4.14.1)	12m 51s
standalone-haskell (master)	52m 45s
test-amd64	2h 20m 22s
generated-files (master)	36s
deploy-js-wasm-of-ocaml	34s
docker-check-all	3s
	5h 58m 52s

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