Formatting check in test workflow

[patrickavs]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces a formatting check to the GitHub Actions test workflow to ensure code consistency. The changes include formatting adjustments to Swift source files and package configuration, along with adding automated formatting validation.

• Adds a new formatting job to the GitHub Actions workflow that runs swift format and checks for formatting differences
• Applies code formatting fixes to existing Swift source files and Package.swift
• Creates a shell script to handle the formatting process

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Sources/MemberwiseInitializerMacros/MemberwiseInitializerMacro.swift	Reformats long lines by breaking them across multiple lines for better readability
Sources/MemberwiseInitializer/MemberwiseInitializer.swift	Splits macro declaration across multiple lines
Package.swift	Adds trailing commas to dependency and target arrays for consistency
.github/workflows/test.yml	Adds new formatting job that validates code formatting
.github/format.sh	Creates shell script to run swift format recursively

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[Copilot]

The script changes to the parent directory with cd .., but this will likely navigate outside the repository root when executed from .github/. This should be cd "$(dirname "$0")/.." to properly navigate to the repository root relative to the script's location.

Suggested change

	cd ..
	cd "$(dirname "$0")/.."