[Audit_RV] Unmaintained crate `serde_cbor` is used

[yanliu18]

Description: while performing package dependency linting using cargo-audit tool, the following attached adversary is reported.

Steps to reproduce:

• Install cargo audit tool.
• Run the following command under the same directory with cargo.lock cargo audit --json

The serde_cbor crate is unmaintained. The author has archived the github repository. Alternatives proposed by the author:

• ciborium
• minicbor

"warnings": {
        "unmaintained": [
            {
                "kind": "unmaintained",
                "package": {
                    "name": "serde_cbor",
                    "version": "0.11.2",
                    "source": "registry+https://github.com/rust-lang/crates.io-index",
                    "checksum": "2bef2ebfde456fb76bbcf9f59315333decc4fda0b2b44b420243c11e0f5ec1f5",
                    "dependencies": [
                        {
                            "name": "half",
                            "version": "1.8.2",
                            "source": "registry+https://github.com/rust-lang/crates.io-index"
                        },
                        {
                            "name": "serde",
                            "version": "1.0.139",
                            "source": "registry+https://github.com/rust-lang/crates.io-index"
                        }
                    ],
                    "replace": null
                },
                "advisory": {
                    "id": "RUSTSEC-2021-0127",
                    "package": "serde_cbor",
                    "title": "serde_cbor is unmaintained",
                    "description": "The `serde_cbor` crate is unmaintained. The author has archived the github repository.\n\nAlternatives proposed by the author:\n\n * [`ciborium`](https://crates.io/crates/ciborium)\n * [`minicbor`](https://crates.io/crates/minicbor)",
                    "date": "2021-08-15",
                    "aliases": [],
                    "related": [],
                    "collection": "crates",
                    "categories": [],
                    "keywords": [],
                    "cvss": null,
                    "informational": "unmaintained",
                    "references": [],
                    "source": null,
                    "url": "https://github.com/pyfisch/cbor",
                    "withdrawn": null
                },
                "versions": {
                    "patched": [],
                    "unaffected": []
                }
            }
        ]
    }

[enthusiastmartin]

Note : It is used only by dev dependency ( by criterion crate) for testing.

I will look into it though to see what can be done.