julia: fix Cozip.create for binary cols and table metadata #7

Job	Run time
Validate tag	4s
npm package	10s
libcozip (linux-aarch64)	1m 8s
R package (windows)	2m 55s
R package (macos)	1m 56s
R package (ubuntu)	1m 56s
libcozip (windows-x86_64)	1m 26s
sdist	7s
libcozip (linux-x86_64)	1m 6s
libcozip (macos-universal)	43s
Julia package (windows-x86_64)	6m 53s
Wheel (macos-universal)	24s
Wheel (windows-x86_64)	1m 5s
Wheel (linux-aarch64)	1m 0s
Wheel (linux-x86_64)	45s
Julia package (linux-x86_64)	1m 15s
Julia package (macos-universal)	1m 22s
Publish to PyPI	0s
Publish to npm	0s
GitHub Release	0s
Regenerate Julia Artifacts.toml	0s
	24m 15s

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