Bump version to 0.1.9 #1577

Job	Run time
check-code-format	2m 35s
run-tests (ubuntu-latest, 3.10.15, none)	8m 45s
run-tests (ubuntu-latest, 3.11, none)	10m 52s
run-tests (ubuntu-latest, 3.12, none)	9m 30s
run-tests (ubuntu-latest, 3.12, coqui_yes)	9m 35s
run-tests (ubuntu-latest, 3.12, openai_yes)	8m 45s
run-tests (macos-latest, 3.11, none)	16m 56s
run-tests (macos-latest, 3.12, none)	25m 26s
run-tests (macos-latest, 3.12, coqui_yes)	17m 28s
run-tests (macos-latest, 3.12, openai_yes)	16m 54s
run-tests (windows-latest, 3.11, none)	15m 5s
run-tests (windows-latest, 3.12, none)	17m 56s
run-tests (windows-latest, 3.12, coqui_yes)	17m 48s
run-tests (windows-latest, 3.12, openai_yes)	14m 36s
build-and-push-package	11s
	3h 12m 22s

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