try to fix upload_url variable sharing dilemma

Author: mikex86

.github/workflows/publish.yml

@@ -6,7 +6,21 @@ on:
       - release/*
 
 jobs:
+  create_release:
+    runs-on: ubuntu-latest
+    outputs:
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
+    steps:
+      - name: Create GitHub 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 }}
   build:
+    needs: create_release
     runs-on: ${{ matrix.runs-on }}
     env:
       IS_CI: 1
@@ -220,21 +234,12 @@ jobs:
           name: pypccl-${{ runner.os }}-${{ matrix.build_type }}-${{ matrix.pccl_build_cuda_support == 'ON' && 'cuda' || 'nocuda' }}-${{ github.run_id }}
           path: ./python/framework/dist/pypccl-*.whl
 
-      - name: Publish GitHub Release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: Release ${{ github.ref }}
-        continue-on-error: true
-
-      - name: Upload Release Assets
+      - name: Upload Release Asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ github.event.release.upload_url }}
+          upload_url: ${{ needs.create_release.outputs.upload_url }}
           asset_path: ${{ github.workspace }}/python/framework/dist/pypccl-*.whl
-          asset_name: pypccl-${{ runner.os }}-${{ matrix.build_type }}-${{ matrix.pccl_build_cuda_support == 'ON' && 'cuda' || 'nocuda' }}-${{ github.run_id }}.whl
+          asset_name: pypccl-${{ matrix.os }}-${{ matrix.build_type }}-${{ matrix.pccl_build_cuda_support == 'ON' && 'cuda' || 'nocuda' }}-${{ github.run_id }}.whl
           asset_content_type: application/zip