fix duplicate upload step

.github/workflows/build.yml

@@ -4,6 +4,9 @@ on:
   release:
     types: [created]
 
+permissions:
+  contents: write
+
 jobs:
   build:
     strategy:
@@ -36,3 +39,5 @@ jobs:
         uses: softprops/action-gh-release@v2
         with:
           files: dist/${{ matrix.output }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}