Supporting workspace versioning

[max-sixty]

Describe the bug
Does this crate support workspace versioning? I'm getting an error when attempting to run it on prql-compiler. Here's the issue template:

• The Cargo.toml file of your project https://github.com/prql/prql/blob/ca2e79f4b27787f5ec5b3fa2edd92790684421cf/Cargo.toml
• The debug level logs (e.g cargo analyze --log-level debug) — I get error: no such subcommand: analyze, but with unused-features:

❯ unused-features analyze --log-level debug
[2022-12-09T00:21:11Z INFO  unused_features::subcommands::analyze] /Users/maximilian/workspace/prql/prql-compiler
[2022-12-09T00:21:11Z DEBUG unused_features::cargo_project] Loading '/Users/maximilian/workspace/prql/prql-compiler/Cargo.toml' ...
[2022-12-09T00:21:11Z DEBUG unused_features::cargo_project] Successfully read the toml file.
[2022-12-09T00:21:11Z DEBUG unused_features::cargo_project] Parsing toml definition ...
[2022-12-09T00:21:11Z ERROR unused_features::subcommands::analyze] Failed to load '/Users/maximilian/workspace/prql/prql-compiler/Cargo.toml' crate. invalid type: map, expected a string for key `package.version` at line 8 column 21
[2022-12-09T00:21:11Z INFO  unused_features] Finished the process

• The target-os and architecture used for building — MacOS, arm64
• Any optional specified CLI configuration flags.

Thank you!

[TimonPost]

I am using those libs to do the analyzing of the crate:

cargo_toml= { version="0.11.5", default-features = false }
toml= { version="0.5.9", default-features = false }
serde= { version="1.0", default-features = false }
toml_edit = { version = "0.14.4", default-features = false }

So depends a bit if they support it and how new the feature is

[max-sixty]

cargo_toml looks well maintained, and 0.11.5 is nine months old, so my guess is that bumping that will fix it...

[jayvdb]

I was able to workaround this by bumping a few deps, and updating a few bits of code. Some of my changes are inadequate, but I will put up a PR anyway.