ci: use artifacts for final upload

Author: georgik

.github/workflows/build.yml

@@ -7,7 +7,25 @@ on:
   workflow_dispatch:
 
 jobs:
+  create-release:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: false
+
   build-and-release:
+    needs: create-release
     strategy:
       matrix:
         board:
@@ -37,33 +55,30 @@ jobs:
           . /opt/esp/idf/export.sh
           cmake -Daction=merge_binaries -P Bootloader.cmake
 
-      - name: Upload binary to release
+      - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
           name: graphical_bootloader_${{ matrix.board.name }}
           path: build/combined.bin
 
-  release:
+  upload-release-assets:
     needs: build-and-release
     runs-on: ubuntu-22.04
     steps:
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Download Artifacts
+        uses: actions/download-artifact@v2
         with:
-          tag_name: ${{ github.ref }}
-          release_name: Release ${{ github.ref }}
-          draft: false
-          prerelease: false
+          path: ./artifacts
 
-      - name: Upload Release Asset
+      - name: Upload Release Assets
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: build/combined.bin
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./artifacts/*
           asset_name: graphical_bootloader_${{ matrix.board.name }}.bin
           asset_content_type: application/octet-stream