Reference newer Rust. Adjust installation of sc-meta.

[andreibancioiu]

Description of the pull request (what is new / what has changed)

• Reference newer Rust: nightly-2023-12-11
• When installing sc-meta, pass --locked

Also see:

• https://t.me/MultiversXDevelopers/122082
• https://github.com/multiversx/mx-sdk-py-cli/issues/383
• https://github.com/multiversx/mx-sdk-rust-contract-builder/pull/49

Did you test the changes locally ?

• [x] yes
• [ ] no

Which category (categories) does this pull request belong to?

• [ ] document new feature
• [ ] update documentation that is not relevant anymore
• [ ] add examples or more information about a component
• [ ] fix grammar issues
• [ ] other