chore(cargo-mono): bump patch version to 0.5.4 (#307)

## Summary
- bump cargo-mono crate version from 0.5.3 to 0.5.4
- sync root Cargo.lock package entry for cargo-mono

## Testing
- cargo test

Author: kdy1

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "cargo-mono"
-version = "0.5.3"
+version = "0.5.4"
 edition = "2021"
 license = "MIT"
 description = "Cargo subcommand for Rust monorepo management"