chore(deps): bump containerregistry-* to 0.1.2

[PeronGH]

Summary

• Bumps containerregistry-image, containerregistry-layout, containerregistry-auth, and containerregistry-registry from 0.1.1 to 0.1.2 (latest on crates.io).
• Bumps the workspace version from 0.2.0 to 0.2.1.
• Updates Cargo.lock accordingly.

Test plan

• cargo fmt --check
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace --all-features

[Copilot]

Pull request overview

Updates the oci2rootfs crate’s containerregistry-* dependencies to the latest released patch version (0.1.2) and refreshes the lockfile to match, keeping the workspace aligned with crates.io.

Changes:

• Bump containerregistry-image and containerregistry-layout from 0.1.1 to 0.1.2.
• Bump optional remote-related dependencies containerregistry-auth and containerregistry-registry from 0.1.1 to 0.1.2.
• Update Cargo.lock checksums/entries for the new versions.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
crates/oci2rootfs/Cargo.toml	Bumps containerregistry-* dependency versions to 0.1.2 (including optional remote deps).
Cargo.lock	Lockfile refresh to reflect containerregistry-* 0.1.2 versions and new checksums.

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