Pin `cargo-release` version to `0.20.1` #4622

Job	Run time
check-for-run-condition	1s
check-for-modification	10s
build-wasm / build-wasm (ubuntu-latest)	6h 0m 4s
build-and-test (ubuntu-latest)	21m 28s
build-and-test (macos-latest)	11m 32s
build-and-test (windows-latest)	19m 47s
test-wasm	0s
	6h 53m 2s

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