chore: Release lavagna version 2.1.9 #614

Job	Run time
rustfmt	14s
test (1.70.0, x86_64-pc-windows-msvc, windows-2019)	14m 19s
test (1.70.0, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	14m 18s
test (1.70.0, x86_64-unknown-linux-gnu, ubuntu-latest)	9m 23s
test (1.70.0, x86_64-apple-darwin, macos-latest)	12m 39s
test (stable, x86_64-pc-windows-msvc, windows-2019)	14m 19s
test (stable, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	14m 18s
test (stable, x86_64-unknown-linux-gnu, ubuntu-latest)	9m 4s
test (stable, x86_64-apple-darwin, macos-latest)	13m 37s
test (beta, x86_64-pc-windows-msvc, windows-2019)	14m 20s
test (beta, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	14m 19s
test (beta, x86_64-unknown-linux-gnu, ubuntu-latest)	8m 7s
test (beta, x86_64-apple-darwin, macos-latest)	14m 29s
test (nightly, x86_64-pc-windows-msvc, windows-2019)	14m 18s
test (nightly, x86_64-pc-windows-gnu, windows-2019, -x86_64-pc-windows-gnu)	14m 18s
test (nightly, x86_64-unknown-linux-gnu, ubuntu-latest)	8m 9s
test (nightly, x86_64-apple-darwin, macos-latest)	14m 18s
	3h 24m 29s

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