[2/x] Archive supporting sources in release workflow

[andrewchang-bird]

Stack

📚 #266 [6/x] Update example projects to use 0.19.1
📚 #265 [5/x] Fix support for Swift library evolution
📚 #264 [4/x] Fix configurator relative path handling
📚 #263 [3/x] Fix package manager integrations
📚 #261 ← [2/x] Archive supporting sources in release workflow
📚 #260 [1/x] Fix CLI archiving and distribution

Overview

Adds a step to the build release artifacts job to archive the supporting sources at Sources/MockingbirdSupport along with the license file.

Test Plan

Building a supporting source archive with --archive creates a ZIP that includes the LICENSE.md and can be inflated.

% Sources/MockingbirdAutomationCli/buildAndRun.sh build supporting
[8/8] Build complete!
error: You must specify an archive location when building supporting sources
% Sources/MockingbirdAutomationCli/buildAndRun.sh build supporting --archive .build/mockingbird/archives/MockingbirdSupport.zip
[2/2] Build complete!
Creating archive at .build/mockingbird/archives/MockingbirdSupport.zip
% unzip .build/mockingbird/archives/MockingbirdSupport.zip
Archive:  .build/mockingbird/archives/MockingbirdSupport.zip
  inflating: MockingbirdSupport/LICENSE.md  
  inflating: MockingbirdSupport/.DS_Store  
   creating: MockingbirdSupport/UIKit/
  inflating: MockingbirdSupport/UIKit/UIView.swift  
  inflating: MockingbirdSupport/UIKit/UIViewController.swift  
  inflating: MockingbirdSupport/UIKit/UILabel.swift  
  inflating: MockingbirdSupport/UIKit/UIControl.swift  
   creating: MockingbirdSupport/Foundation/
   creating: MockingbirdSupport/Foundation/ObjectiveC/
  inflating: MockingbirdSupport/Foundation/ObjectiveC/NSObject.swift  
   creating: MockingbirdSupport/Swift/
  inflating: MockingbirdSupport/Swift/Hashable.swift  
  inflating: MockingbirdSupport/Swift/Comparable.swift  
  inflating: MockingbirdSupport/Swift/Misc.swift  
  inflating: MockingbirdSupport/Swift/Codable.swift  
  inflating: MockingbirdSupport/Swift/Equatable.swift  
   creating: MockingbirdSupport/AppKit/
  inflating: MockingbirdSupport/AppKit/NSResponder.swift  
  inflating: MockingbirdSupport/AppKit/NSView.swift  
  inflating: MockingbirdSupport/AppKit/NSViewController.swift