Add workaround for failing Python linking in CI

See actions/runner-images#8500

Author: fwcd

Diff for: .github/workflows/build.yml

@@ -22,7 +22,12 @@ jobs:
       run: sudo Scripts/install-build-dependencies-apt
     - name: Install native dependencies (macOS)
       if: runner.os == 'macOS'
-      run: Scripts/install-dependencies-brew
+      run: |
+        # Work around an upstream issue with the runner image:
+        # https://github.com/actions/runner-images/issues/8500
+        brew upgrade || brew link --overwrite [email protected]
+
+        Scripts/install-dependencies-brew
     - name: Install Swift
       uses: swift-actions/setup-swift@v1
       with:

Diff for: Sources/D2Commands/game/chess/pieces/BoardPiece.swift

@@ -1,12 +1,12 @@
 public struct BoardPiece {
     public let color: ChessRole
-    public var piece: ChessPiece
+    public var piece: any ChessPiece
     public var moveCount: Int
     public var moved: Bool { moveCount > 0 }
 
     public var resourcePng: String { (color == .white) ? piece.whiteResourcePng : piece.blackResourcePng }
 
-    public init(_ color: ChessRole, _ piece: ChessPiece, moveCount: Int = 0) {
+    public init(_ color: ChessRole, _ piece: any ChessPiece, moveCount: Int = 0) {
         self.color = color
         self.piece = piece
         self.moveCount = moveCount