chore(deps): update dependency soto-project/soto to from: "7.4.0" (#1504)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [soto-project/soto](https://redirect.github.com/soto-project/soto) |
minor | `from: "7.3.0"` -> `from: "7.4.0"` |

---

### Release Notes

<details>
<summary>soto-project/soto (soto-project/soto)</summary>

###
[`v7.4.0`](https://redirect.github.com/soto-project/soto/releases/tag/7.4.0)

[Compare
Source](https://redirect.github.com/soto-project/soto/compare/7.3.0...7.4.0)

Using soto-core
[v7.4.0](https://redirect.github.com/soto-project/soto-core/releases/tag/7.4.0)
Using AWS models from [aws-sdk-go-v2
release-2025-02-28](https://redirect.github.com/aws/aws-sdk-go-v2/releases/tag/release-2025-02-28)

Services removed as they have been deprecated:

-   ElasticInference
-   IOT1ClickDevicesService
-   IOT1ClickProjects

#### Breaking change

- All parameters set as
[documents](https://smithy.io/2.0/spec/simple-types.html#document) now
use `AWSDocument` instead of `String`.

</details>

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examples/soto_example/Package.swift

@@ -5,6 +5,6 @@ import PackageDescription
 let package = Package(
     name: "PhoneNumberKitExample",
     dependencies: [
-        .package(url: "https://github.com/soto-project/soto.git", from: "7.3.0"),
+        .package(url: "https://github.com/soto-project/soto.git", from: "7.4.0"),
     ]
 )