Update zerocopy requirement from 0.2.8 to 0.3.0
Update zerocopy requirement from 0.2.8 to 0.3.0

Updates the requirements on zerocopy to permit the latest version.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
spacejam/sled,spacejam/sled,spacejam/sled