chore(deps): update dependency nicklockwood/swiftformat to from: "0.56.4" (#1687)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[nicklockwood/SwiftFormat](https://redirect.github.com/nicklockwood/SwiftFormat)
| patch | `from: "0.56.3"` -> `from: "0.56.4"` |

---

### Release Notes

<details>
<summary>nicklockwood/SwiftFormat (nicklockwood/SwiftFormat)</summary>

###
[`v0.56.4`](https://redirect.github.com/nicklockwood/SwiftFormat/blob/HEAD/CHANGELOG.md#0564-2025-06-15)

[Compare
Source](https://redirect.github.com/nicklockwood/SwiftFormat/compare/0.56.3...0.56.4)

- Fixed issue where `trailingCommas` rule would not insert trailing
commas in function declarations with return type
- Fixed issue where `trailingCommas` rule would not insert trailing
commas in array literals following `!` operator
- Fixed issue where `unusedArguments` rule would ignore function
declarations with trailing commas
- Fixed issue where `void` rule would not handle `()` types in
typealiases
- Fixed issue where `redundantLet` rule did not detect code inside
result builders when nested in conditional compilation blocks

</details>

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examples/pkg_manifest_minimal/Package.resolved

@@ -7,7 +7,7 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/apple/swift-argument-parser", from: "1.5.1"),
         .package(url: "https://github.com/apple/swift-log", from: "1.6.3"),
-        .package(url: "https://github.com/nicklockwood/SwiftFormat", from: "0.56.3"),
+        .package(url: "https://github.com/nicklockwood/SwiftFormat", from: "0.56.4"),
         .package(path: "third_party/my_local_package"),
         .package(path: "third_party/NotThatAmazingModule"),
     ]