Compilation issues

[juli1]

To use the crate serde-cyclonedx = "0.9.1", I had to use the derive features of the serde crate.

Without putting

serde = { version = "1.0.204", features = ["derive"] }

I had the following error

error: cannot find attribute `serde` in this scope
    --> /Users/julien/git/sbom-generator/target/debug/build/serde-cyclonedx-c37946fed79d8fc8/out/cyclonedx_1_5.rs:2206:3
     |
2206 | #[serde(rename = "step")]
     |   ^^^^^
     |
     = note: `serde` is in scope, but it is a crate, not an attribute

One solution would be to at least include these instructions in the documentation.