CI: do not fail release if homebrew fails #79

Job	Run time
build-tarball-linux-x64	3m 12s
build-tarball-linux-x64-musl	11m 25s
build-tarball-linux-arm64	3m 7s
build-tarball-linux-arm64-musl	3m 12s
build-tarball-linux-armv7	3m 50s
build-tarball-linux-armv7-musl	3m 8s
build-tarball-linux-armv6	4m 39s
build-tarball-linux-armv6-musl	2m 53s
build-tarball-macos-x64	6m 56s
build-tarball-macos-arm64	7m 4s
rpm	29s
deb	29s
e2e-linux	3m 39s
release	1m 21s
bump-alpine	0s
bump-homebrew-formula	0s
	55m 24s

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