[skip travis] update build.yml

.github/workflows/build.yml

@@ -77,6 +77,9 @@ jobs:
 
     needs: build_unix
     
+    outputs:
+      sha2_windows: ${{ steps.sha2_file_win.outputs.sha2_windows }}
+
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python
@@ -111,6 +114,9 @@ jobs:
 
     needs: [build_unix, build_windows]
     
+    outputs:
+      sha2_windows32: ${{ steps.sha2_file_win.outputs.sha2_windows32 }}
+
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python 3.4.4 32-Bit