Add workflow to create release PR #2255

Job	Run time
minimal	9s
msrv	50s
docs	17s
check-cfg	19s
quickchecking	14s
rustfmt-clippy	29s
test-book	13s
test (ubuntu-latest, 9.0, 1, 0, 0, 0, 0)	1m 57s
test-expectations (ubuntu-latest)	46s
test (ubuntu-latest, 9.0, 1, 0, 0, 1, 0)	1m 51s
test-expectations (macos-12)	1m 14s
test (ubuntu-latest, 9.0, 1, 0, 1, 0, 0)	1m 46s
test (ubuntu-latest, 9.0, 1, 0, 1, 1, 0)	1m 45s
test (ubuntu-latest, 9.0, 1, 1, 0, 0, 0)	2m 22s
test (ubuntu-latest, 9.0, 1, 1, 0, 1, 0)	2m 10s
test (ubuntu-latest, 9.0, 1, 1, 1, 0, 0)	2m 15s
test (ubuntu-latest, 9.0, 1, 1, 1, 1, 0)	2m 11s
test (ubuntu-latest, 16.0, 1, 0, 0, 0, 0)	2m 34s
test (ubuntu-latest, 16.0, 1, 0, 0, 1, 0)	2m 40s
test (ubuntu-latest, 16.0, 1, 0, 1, 0, 0)	2m 41s
test (ubuntu-latest, 16.0, 1, 0, 1, 1, 0)	2m 31s
test (ubuntu-latest, 16.0, 1, 1, 0, 0, 0)	2m 55s
test (ubuntu-latest, 16.0, 1, 1, 0, 1, 0)	3m 0s
test (ubuntu-latest, 16.0, 1, 1, 1, 0, 0)	3m 12s
test (ubuntu-latest, 16.0, 1, 1, 1, 1, 0)	3m 5s
test (ubuntu-latest, 16.0, 0, 0, 1)	1m 50s
test (macos-12, 9.0, 0, 0, 0)	1m 44s
success	1s
	47m 1s

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