feat(phase-2): bump version to 0.1.8

[overtrue]

Related issue(s)

• N/A

Background and user impact

• The workspace version was still 0.1.7 on the latest main branch.
• Releasing the recent changes requires a new crate and binary version.

Root cause summary

• The workspace package version and internal crate dependency versions had not been advanced for the next release.

Solution overview

• Bump the workspace version from 0.1.7 to 0.1.8.
• Update internal workspace dependency version references to 0.1.8.
• Refresh Cargo.lock so local package entries match the new workspace version.

Test status

• cargo fmt --all
• cargo clippy --workspace -- -D warnings
• cargo test --workspace

[Copilot]

Pull request overview

This PR bumps the Rust workspace and internal crate versions to 0.1.8 to prepare for the next release, ensuring the workspace metadata and lockfile reflect the new version.

Changes:

• Update [workspace.package] version from 0.1.7 to 0.1.8.
• Update internal workspace dependency version references (rc-core, rc-s3, rustfs-cli) to 0.1.8.
• Refresh Cargo.lock entries for workspace crates to match 0.1.8.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
Cargo.toml	Bumps workspace version and aligns internal workspace dependency versions to 0.1.8.
Cargo.lock	Updates lockfile package entries for workspace crates (rc-core, rc-s3, rustfs-cli) to 0.1.8.

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