test(cli): cover version output contract

[overtrue]

Summary

Adds a focused CLI contract test for the latest version bump path. The help contract suite already checked that the global --version option is discoverable, but it did not assert that running rc --version reports the package version compiled into the binary.

Root cause

Version bump changes can update Cargo metadata without a fast test proving the binary output follows that metadata. A stale or mismatched version string would make release verification harder for users and downstream packaging.

Changes

• Added binary_version_matches_package_version to the help contract suite.
• Added a minimal Makefile pre-commit target because this automation requires make pre-commit before PR submission and the repository did not define that target.

Validation

• cargo test -p rustfs-cli --test help_contract binary_version_matches_package_version
• make pre-commit