cargo-raze generates duplicated `aliases` for rustix@0.37.19

with rustix@0.37.19 cargo-raze creates `rust_library` with duplicated value in aliases field which fails to compile:

```
aliases = {
    "@raze__errno__0_3_1//:errno": "libc_errno",
    "@raze__errno__0_3_1//:errno": "libc_errno",
},
```

I've created a repository to reproduce: https://github.com/k1nkreet/cargo-raze-duplicated-alias