Persist build manifests

Author: cuberoot

.github/workflows/dawn.yaml

@@ -144,6 +144,13 @@ jobs:
           path: Dawn/builds/
           retention-days: 1
 
+      - name: Upload build manifest
+        uses: actions/upload-artifact@v4
+        with:
+          name: dawn-build-manifest-${{ matrix.target }}
+          path: Dawn/builds/manifests/
+          retention-days: 1
+
   create-bundle:
     needs: [build-dawn, get-dawn-source]
     runs-on: ubuntu-latest
@@ -174,6 +181,12 @@ jobs:
           name: dawn-version
           path: Dawn
 
+      - name: Download build manifests
+        uses: actions/download-artifact@v4
+        with:
+          name: dawn-build-manifest-${{ matrix.target }}
+          path: Dawn/builds/manifests/
+
       - name: Create artifact bundle
         run: |
           cd Dawn