Bump peter-evans/create-pull-request from 5 to 6 #369

Job	Run time
docker-master	1h 40m 0s
test-standalone (master, dev, default)	50s
publish-standalone-dry-run	31s
validate-docker-master	1m 20s
build-js-of-ocaml (master, 4.11.1)	17m 23s
build-wasm-of-ocaml (master, 4.14.1)	13m 16s
generated-files (master)	23m 18s
standalone-haskell (master)	51m 34s
test-amd64	2h 17m 5s
deploy-js-wasm-of-ocaml	32s
docker-check-all	6s
	5h 45m 55s

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