Remove unnecessary workspace versions

[lxfind]

Description

A few crates don't/shouldn't inherit workspace version. Give them individual versions.
Also the open-json-rpc is generating version using sui-core's version, which is always the workspace version. This is wrong to me. This PR is a short-term fix to just use workspace version directly in open-json-rpc, but we should make it a real version.

Test Plan

cargo build

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Type of Change (Check all that apply)

• protocol change
• user-visible impact
• breaking change for a client SDKs
• breaking change for FNs (FN binary must upgrade)
• breaking change for validators or node operators (must upgrade binaries)
• breaking change for on-chain data layout
• necessitate either a data wipe or data migration

Release notes

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Name	Status	Preview	Comments	Updated (UTC)
offline-signer-helper	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 25, 2023 9:58pm

4 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
explorer	⬜️ Ignored (Inspect)			May 25, 2023 9:58pm
explorer-storybook	⬜️ Ignored (Inspect)			May 25, 2023 9:58pm
sui-wallet-kit	⬜️ Ignored (Inspect)			May 25, 2023 9:58pm
wallet-adapter	⬜️ Ignored (Inspect)			May 25, 2023 9:58pm