Bump version to 0.9.19 #3414

Job	Run time
Julia 1.6 - test_manifolds - ubuntu-latest	36m 31s
Julia 1.6 - test_lie_groups - ubuntu-latest	26m 37s
Julia 1.6 - test_integration - ubuntu-latest	6m 6s
Julia 1.6 - test_manifolds - macOS-latest	31m 5s
Julia 1.6 - test_lie_groups - macOS-latest	20m 52s
Julia 1.6 - test_integration - macOS-latest	5m 41s
Julia 1.10 - test_manifolds - ubuntu-latest	28m 54s
Julia 1.10 - test_lie_groups - ubuntu-latest	20m 48s
Julia 1.10 - test_integration - ubuntu-latest	4m 35s
Julia 1.10 - test_manifolds - macOS-latest	26m 6s
Julia 1.10 - test_lie_groups - macOS-latest	17m 58s
Julia 1.10 - test_integration - macOS-latest	4m 40s
Julia ~1.11.0-0 - test_manifolds - ubuntu-latest	1h 1m 10s
Julia ~1.11.0-0 - test_lie_groups - ubuntu-latest	39m 45s
Julia ~1.11.0-0 - test_integration - ubuntu-latest	4m 27s
Julia ~1.11.0-0 - test_manifolds - macOS-latest	49m 26s
Julia ~1.11.0-0 - test_lie_groups - macOS-latest	38m 36s
Julia ~1.11.0-0 - test_integration - macOS-latest	4m 33s
	7h 7m 50s

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