Update cargo dependencies and allow-list Unicode-3.0 license (#1193)

Run `cargo update`. In particular, update crate `idna` from version
`0.5.0` to `1.0.3`, in order to address
[RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421).

Also add "Unicode-3.0" to the list of allowed licenses in deny.toml.
Required by the new dependency:
```
icu_normalizer v1.5.0
└── idna_adapter v1.2.0
    └── idna v1.0.3
```

### Does this change impact existing behavior?

No.

### Does this change need a changelog entry?

No.

---

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the [Developer Certificate of Origin
(DCO)](https://developercertificate.org/).

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Signed-off-by: Alessandro Passaro <[email protected]>