Don't run --unit-graph for new subcommand

[ian-h-chamberlain]

Also just update Cargo.lock.

Fixes a warning that would otherwise be displayed on cargo 3ds new:

Warning: unable to check if `ctru` debuginfo should be linked: unable to parse `--unit-graph` json: EOF while parsing a value at line 1 column 0
stderr: `error: unexpected argument '--unit-graph' found

  tip: to pass '--unit-graph' as a value, use '-- --unit-graph'

Usage: cargo new -Z <FLAG> <PATH>

For more information, try '--help'.
`
    Creating binary (application) `test-bin` package
note: see more `Cargo.toml` keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html