Use newer release of swift-format.

Package.swift

@@ -141,7 +141,7 @@ if ProcessInfo.processInfo.environment["SWIFTCI_USE_LOCAL_DEPS"] == nil {
         .package(url: "https://github.com/apple/swift-docc-symbolkit", branch: "main"),
         .package(url: "https://github.com/apple/swift-crypto.git", from: "2.5.0"),
         .package(url: "https://github.com/apple/swift-docc-plugin", from: "1.2.0"),
-        .package(url: "https://github.com/swiftlang/swift-format", from: "600.0.0"),
+        .package(url: "https://github.com/swiftlang/swift-format", from: "601.0.0-prerelease-2024-10-01"),
     ]
 } else {
     // Building in the Swift.org CI system, so rely on local versions of dependencies.

Sources/SwiftDocC/Utility/Formatting/SyntaxFormatter.swift

@@ -24,7 +24,7 @@ struct SyntaxFormatter {
         configuration.indentation = .spaces(indentWidth)
         configuration.lineBreakBeforeEachArgument = true
         configuration.lineBreakBeforeEachGenericRequirement = true
-        //configuration.lineBreakBetweenDeclarationAttributes = true
+        configuration.lineBreakBetweenDeclarationAttributes = true
     }
 
     /// Initializes the formatter with the provided configuration.

Tests/SwiftDocCTests/Utility/Formatting/SyntaxFormatterTests.swift

@@ -35,7 +35,8 @@ class SyntaxFormatterTests: XCTestCase {
                 : Sendable
             """),
             """
-            @attached(peer) macro Test<C1, C2>(
+            @attached(peer)
+            macro Test<C1, C2>(
                 _ displayName: String? = nil,
                 _ traits: any TestTrait...,
                 arguments zippedCollections: Zip2Sequence<C1, C2>