ci: update macOS build workflow to include artifact upload. Build in release

Author: dev-joss

.github/workflows/build.yml

@@ -5,6 +5,10 @@ on:
     branches: [master, feature/**]
   pull_request:
     branches: [master]
+  workflow_dispatch:
+
+permissions:
+  contents: read
 
 jobs:
   build-macos:
@@ -13,7 +17,14 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Configure
-        run: cmake -B build
+        run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
 
       - name: Build
-        run: cmake --build build
+        run: cmake --build build --config Release
+
+      - name: Upload workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: psn-macos-release
+          path: build/examples/psn_*
+          if-no-files-found: error