chore: @rest endpoints are now run by starlette/uvicorn instead of flask/werkzeug

[viniarck]

Closes #45
Closes #44

This PR depends on kytos-ng/kytos#375

(I'll revert the pinned branch feat/starlette on requirements/dev.in later on, it's need for tests to pass)

Summary

Notice that requirements/dev.in is being used directly now instead of requirements/dev.txt to simplify code maintenance and house keeping, for more information check out the linked issue, in summary, we're making a trade-off to trust kytos-ng dev upstream transitive dependencies.

Local Tests

GET /api/amlight/sdntrace/trace/{{trace_id}}
{
    "request_id": 30001,
    "result": [
        {
            "type": "starting",
            "dpid": "00:00:00:00:00:00:00:01",
            "port": 1,
            "time": "2023-04-25 12:12:08.658752"
        },
        {
            "type": "trace",
            "dpid": "00:00:00:00:00:00:00:03",
            "port": 3,
            "time": "0:00:00.520074"
        },
        {
            "type": "last",
            "reason": "done",
            "msg": "none",
            "time": "0:00:02.045843"
        }
    ],
    "start_time": "2023-04-25 12:12:08.658752",
    "total_time": "0:00:02.046409",
    "request": {
        "trace": {
            "switch": {
                "dpid": "00:00:00:00:00:00:00:01",
                "in_port": 1
            },
            "eth": {
                "dl_vlan": 105
            }
        }
    }
}

End-to-End Tests

e2e tests with this PR and related starlette PRs can be found here, they're passing