Update Rust crate tokio to 1.18 (#60)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [tokio](https://tokio.rs) ([source](https://togithub.com/tokio-rs/tokio)) | dependencies | minor | `1.17` -> `1.18` |

---

### Release Notes

<details>
<summary>tokio-rs/tokio</summary>

### [`v1.18.1`](https://togithub.com/tokio-rs/tokio/releases/tokio-1.18.1)

[Compare Source](https://togithub.com/tokio-rs/tokio/compare/tokio-1.18.0...tokio-1.18.1)

### 1.18.1 (May 2, 2022)

The 1.18.0 release broke the build for targets without 64-bit atomics when building with `tokio_unstable`. This release fixes that. ([#&#8203;4649])

[#&#8203;4649]: https://togithub.com/tokio-rs/tokio/pull/4649

### [`v1.18.0`](https://togithub.com/tokio-rs/tokio/releases/tokio-1.18.0)

[Compare Source](https://togithub.com/tokio-rs/tokio/compare/tokio-1.17.0...tokio-1.18.0)

### 1.18.0 (April 27, 2022)

This release adds a number of new APIs in `tokio::net`, `tokio::signal`, and
`tokio::sync`. In addition, it adds new unstable APIs to `tokio::task` (`Id`s
for uniquely identifying a task, and `AbortHandle` for remotely cancelling a
task), as well as a number of bugfixes.

##### Fixed

-   blocking: add missing `#[track_caller]` for `spawn_blocking` ([#&#8203;4616](https://togithub.com/tokio-rs/tokio/issues/4616))
-   macros: fix `select` macro to process 64 branches ([#&#8203;4519](https://togithub.com/tokio-rs/tokio/issues/4519))
-   net: fix `try_io` methods not calling Mio's `try_io` internally ([#&#8203;4582](https://togithub.com/tokio-rs/tokio/issues/4582))
-   runtime: recover when OS fails to spawn a new thread ([#&#8203;4485](https://togithub.com/tokio-rs/tokio/issues/4485))

##### Added

-   macros: support setting a custom crate name for `#[tokio::main]` and
    `#[tokio::test]` ([#&#8203;4613](https://togithub.com/tokio-rs/tokio/issues/4613))
-   net: add `UdpSocket::peer_addr` ([#&#8203;4611](https://togithub.com/tokio-rs/tokio/issues/4611))
-   net: add `try_read_buf` method for named pipes ([#&#8203;4626](https://togithub.com/tokio-rs/tokio/issues/4626))
-   signal: add `SignalKind` `Hash`/`Eq` impls and `c_int` conversion ([#&#8203;4540](https://togithub.com/tokio-rs/tokio/issues/4540))
-   signal: add support for signals up to `SIGRTMAX` ([#&#8203;4555](https://togithub.com/tokio-rs/tokio/issues/4555))
-   sync: add `watch::Sender::send_modify` method ([#&#8203;4310](https://togithub.com/tokio-rs/tokio/issues/4310))
-   sync: add `broadcast::Receiver::len` method ([#&#8203;4542](https://togithub.com/tokio-rs/tokio/issues/4542))
-   sync: add `watch::Receiver::same_channel` method ([#&#8203;4581](https://togithub.com/tokio-rs/tokio/issues/4581))
-   sync: implement `Clone` for `RecvError` types ([#&#8203;4560](https://togithub.com/tokio-rs/tokio/issues/4560))

##### Changed

-   update `mio` to 0.8.1 ([#&#8203;4582](https://togithub.com/tokio-rs/tokio/issues/4582))
-   macros: rename `tokio::select!`'s internal `util` module ([#&#8203;4543](https://togithub.com/tokio-rs/tokio/issues/4543))
-   runtime: use `Vec::with_capacity` when building runtime ([#&#8203;4553](https://togithub.com/tokio-rs/tokio/issues/4553))

##### Documented

-   improve docs for `tokio_unstable` ([#&#8203;4524](https://togithub.com/tokio-rs/tokio/issues/4524))
-   runtime: include more documentation for thread_pool/worker ([#&#8203;4511](https://togithub.com/tokio-rs/tokio/issues/4511))
-   runtime: update `Handle::current`'s docs to mention `EnterGuard` ([#&#8203;4567](https://togithub.com/tokio-rs/tokio/issues/4567))
-   time: clarify platform specific timer resolution ([#&#8203;4474](https://togithub.com/tokio-rs/tokio/issues/4474))
-   signal: document that `Signal::recv` is cancel-safe ([#&#8203;4634](https://togithub.com/tokio-rs/tokio/issues/4634))
-   sync: `UnboundedReceiver` close docs ([#&#8203;4548](https://togithub.com/tokio-rs/tokio/issues/4548))

##### Unstable

The following changes only apply when building with `--cfg tokio_unstable`:

-   task: add `task::Id` type ([#&#8203;4630](https://togithub.com/tokio-rs/tokio/issues/4630))
-   task: add `AbortHandle` type for cancelling tasks in a `JoinSet` ([#&#8203;4530](https://togithub.com/tokio-rs/tokio/issues/4530)],
    \[[#&#8203;4640](https://togithub.com/tokio-rs/tokio/issues/4640))
-   task: fix missing `doc(cfg(...))` attributes for `JoinSet` ([#&#8203;4531](https://togithub.com/tokio-rs/tokio/issues/4531))
-   task: fix broken link in `AbortHandle` RustDoc ([#&#8203;4545](https://togithub.com/tokio-rs/tokio/issues/4545))
-   metrics: add initial IO driver metrics ([#&#8203;4507](https://togithub.com/tokio-rs/tokio/issues/4507))

</details>

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Author: renovate-bot

rust/operator-binary/Cargo.toml

@@ -18,7 +18,7 @@ lazy_static = "1.4"
 serde_yaml = "0.8"
 snafu = "0.7"
 strum = { version = "0.24.0", features = ["derive"] }
-tokio = { version = "1.17", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1.18", features = ["macros", "rt-multi-thread"] }
 tracing = "0.1"
 
 [build-dependencies]