chore(deps): update dependency vapor/vapor to v4.112.1 (#1476)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [vapor/vapor](https://redirect.github.com/vapor/vapor) | patch |
`4.112.0` -> `4.112.1` |

---

### Release Notes

<details>
<summary>vapor/vapor (vapor/vapor)</summary>

###
[`v4.112.1`](https://redirect.github.com/vapor/vapor/releases/tag/4.112.1):
- Use singleton NIOThreadPool by default

[Compare
Source](https://redirect.github.com/vapor/vapor/compare/4.112.0...4.112.1)

#### What's Changed

Use singleton NIOThreadPool by default by
[@&#8203;gwynne](https://redirect.github.com/gwynne) in
[#&#8203;3298](https://redirect.github.com/vapor/vapor/issues/3298)

> All Vapor applications currently end up with at least two running
thread pools - the global singleton and the one created by Vapor by
default. This change configures the global singleton (whose thread count
defaults to `System.coreCount` anyway) as the default, eliminating the
additional thread pool. This is especially nice for backtraces, as it
cuts down noticeably on the number of excess threads in a Vapor process.
>
> We also now ignore `UnsupportedOperation` errors during thread pool
shutdown, which is necessary for using the singleton pool, and was
previously preventing users from explicitly configuring use of the
singleton thread pool, due to the (inconsistent) use of `try!`.

#### Reviewers

Thanks to the reviewers for their help:

-   [@&#8203;MahdiBM](https://redirect.github.com/MahdiBM)

###### *This patch was released by
[@&#8203;gwynne](https://redirect.github.com/gwynne)*

**Full Changelog**:
vapor/vapor@4.112.0...4.112.1

</details>

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examples/vapor_example/swift/Package.swift

@@ -5,7 +5,7 @@ import PackageDescription
 let package = Package(
     name: "vapor_example",
     dependencies: [
-        .package(url: "https://github.com/vapor/vapor.git", exact: "4.112.0"),
+        .package(url: "https://github.com/vapor/vapor.git", exact: "4.112.1"),
         .package(url: "https://github.com/vapor/fluent.git", exact: "4.12.0"),
         .package(url: "https://github.com/vapor/fluent-sqlite-driver.git", exact: "4.8.0"),
     ]