publishToCrates - publish to crates.io (rust artifacts)

[gaiksaya]

Add a jenkins library to allow artifacts to be able to published to crates https://crates.io/

Acceptance Criteria

- [ ] Artifacts should be signed before publishing

• Artifacts should be published in an automated manner without any human intervention

[gaiksaya]

[Triage] We will be working on this in next few weeks.

[gaiksaya]

From opensearch-project/opensearch-build#3247 (comment)

Did some research around publishing the rust clients to crates.io.

Here are few findings:

1. There is no mechanism to sign crates (yet!) See Security model / TUF rust-lang/crates.io#75 for details
2. We need to have rust toolchain installed to run crago commands. (Adding cargo installation on docker image used for release)
3. CI systems you can use the CARGO_REGISTRY_TOKEN environment variable to publish programmatically or just use --token. https://doc.rust-lang.org/cargo/commands/cargo-publish.html

cargo publish --token <token>