Set the version to 0.16.3 #15399

Job	Run time
check-deps (3.9)	1m 15s
check-deps (3.10)	1m 14s
check-extras (3.9)	29s
check-deps (3.11)	1m 6s
check-extras (3.10)	26s
check-deps (3.12)	1m 16s
check-extras (3.11)	28s
check-extras (3.12)	26s
check-licenses (3.12)	3m 24s
setup (3.9)	5s
changelog	9s
setup (3.10)	6s
shellcheck	8s
shfmt	34s
setup (3.11)	7s
setup (3.12)	8s
setup_ingest (3.9)	4s
lint (3.9)	1m 22s
setup_ingest (3.10)	6s
lint (3.10)	1m 23s
lint (3.11)	1m 20s
test_unit (3.9)	21m 31s
test_dockerfile	25m 32s
test_ingest_src (3.9)	9m 22s
test_unit (3.10)	22m 19s
test_ingest_src (3.10)	23m 1s
test_unit_no_extras (3.10)	1m 41s
test_unit (3.11)	20m 36s
test_unstructured_api_unit (3.10)	35s
test_unit (3.12)	21m 29s
test_unit_dependency_extras (3.10, csv)	1m 59s
test_unit_dependency_extras (3.10, docx)	2m 19s
test_unit_dependency_extras (3.10, odt)	2m 20s
test_unit_dependency_extras (3.10, markdown)	2m 12s
test_unit_dependency_extras (3.10, pypandoc)	2m 37s
test_unit_dependency_extras (3.10, pdf-image)	16m 52s
test_unit_dependency_extras (3.10, pptx)	2m 45s
test_unit_dependency_extras (3.10, xlsx)	2m 4s
	3h 14m 50s

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