Issue 81 add running of tests to the build pipeline

Author: davdres

.github/workflows/build.yml

@@ -4,14 +4,19 @@ on:
   pull_request:
     paths:
       - '**.swift'
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: macos-latest
     steps:
+      - uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: '16.2.0' # Specify the desired Xcode version
+          
       - uses: actions/checkout@v4
 
       - name: 🔨 Build
         run: |
-          sudo xcode-select -s /Applications/Xcode_15.4.app/
-          swift build
+          swift build
+          swift test