Add GitHub Actions workflow for Swift 6.1 on macOS

Signed-off-by: Christopher Jr Riley <chrisjr@cjrriley.com>

Author: MasterJ93

.github/workflows/swift-macos.yml

@@ -0,0 +1,24 @@
+name: Build and Test in Swift 6.1 on macOS
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: swift-actions/setup-swift@v2
+      with:
+        swift-version: "6.1.0"
+    - name: Get swift version
+      run: swift --version
+
+    - name: Build
+      run: swift build -v
+
+    - name: Run tests
+      run: swift test -v