Update with Vega-Lite 5.16.0 and remove 5.7 #382

Job	Run time
rust-fmt-clippy	53s
cargo-bundle-license	2m 4s
black-lint	12s
codegen-clean	47s
vl-convert-python-tests (ubuntu-latest, 3.10, bash -l {0})	8m 26s
vl-convert-rs-tests (ubuntu-latest)	15m 41s
vl-convert-python-tests (windows-2022, 3.10, pwsh)	10m 42s
vl-convert-rs-tests (windows-2022)	25m 26s
vl-convert-python-tests (macos-11, 3.10, bash -l {0})	8m 44s
vl-convert-rs-tests (macos-11)	22m 25s
	1h 35m 20s

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