Bump version to v0.19.1 #10847

Job	Run time
build_node (ubuntu-latest)	1m 13s
build_node (macos-latest)	1m 15s
build_node (windows-latest)	5m 28s
Ruby 3.1 on ubuntu-latest	13m 24s
Ruby 3.2 on ubuntu-latest	13m 28s
Ruby 3.3 on ubuntu-latest	8m 45s
Ruby 3.1 on macos-latest	8m 45s
Ruby 3.2 on macos-latest	7m 30s
Ruby 3.3 on macos-latest	6m 29s
Ruby 3.1 on windows-latest	19m 2s
Ruby 3.2 on windows-latest	18m 35s
Ruby 3.3 on windows-latest	18m 45s
lint_node	28s
lint_ruby	21s
Verify Jekyll website builds	11s
	2h 3m 39s

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