fix: make builds re-usable by release workflow

.github/workflows/build.yml

@@ -37,6 +37,12 @@ jobs:
       uses: ./.github/actions/setup-qmk
 
     - name: Build
-      id: build
       run: |
         qmk compile -kb ${{ matrix.keyboard }} -km ${{ matrix.keymap }} -e SKIP_GIT=1
+
+    - name: Upload firmware
+      if: matrix.keymap == 'klayi'
+      uses: actions/upload-artifact@v4
+      with:
+        name: firmware-${{ matrix.keyboard == 'zsa/moonlander/reva' && 'reva' || 'revb' }}
+        path: .build/*.bin

.github/workflows/release.yml

@@ -1,15 +1,17 @@
 name: Release firmware
 
 on:
-  push:
+  workflow_run:
+    workflows: ["Build firmware"]
+    types:
+      - completed
     branches:
       - klayi
-    paths-ignore:
-      - '**.md'
 
 jobs:
   release-firmware:
     runs-on: ubuntu-latest
+    if: github.event.workflow_run.conclusion == 'success'
     permissions:
       contents: write
 
@@ -18,7 +20,6 @@ jobs:
       uses: actions/checkout@v4
       with:
         fetch-depth: 0
-        submodules: true
 
     - name: Calculate next version
       id: version
@@ -29,17 +30,14 @@ jobs:
         minor_pattern: "(feat)"
         version_format: "${major}.${minor}.${patch}"
 
-    - name: Setup QMK
-      uses: ./.github/actions/setup-qmk
-
-    - name: Build firmware
-      run: |
-        qmk compile -kb zsa/moonlander -km klayi -e SKIP_GIT=1
-
-    - name: Prepare release assets
-      run: |
-        mkdir -p release
-        cp .build/*.bin .build/*.hex .build/*.uf2 release/ 2>/dev/null || true
+    - name: Download firmware artifacts
+      uses: actions/download-artifact@v4
+      with:
+        path: release
+        pattern: firmware-*
+        merge-multiple: true
+        run-id: ${{ github.event.workflow_run.id }}
+        github-token: ${{ secrets.GITHUB_TOKEN }}
 
     - name: Create GitHub Release
       uses: softprops/action-gh-release@v2