Migrate from artifacts to release

.github/workflows/build-pi-image.yml

@@ -8,6 +8,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
 
     steps:
       - name: Checkout repository
@@ -18,9 +20,15 @@ jobs:
           sudo chmod +x ./build-pi-image.sh
           sudo ./build-pi-image.sh
 
-      - name: Upload Raspberry Pi image
-        uses: actions/upload-artifact@v4
+      - name: Create release
+        uses: softprops/action-gh-release@v2
         with:
-          name: rpi.img.xz
-          path: pi-gen/deploy/*.img.xz
-          overwrite: true
+          tag_name: v1.0
+          name: Sonos Streaming Image - v1.0
+          body: |
+            Automated build of the Sonos streaming image.
+            Build date: ${{ github.event.repository.updated_at }}
+          files: |
+            pi-gen/deploy/*.img.xz
+          draft: false
+          prerelease: false