Pin softprops/action-gh-release

Author: jedisct1

.github/workflows/releases.yml

@@ -78,7 +78,7 @@ jobs:
           prerelease: false
 
       - name: Upload release assets
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@cd28b0f5ee8571b76cfdaa62a30d51d752317477
         if: startsWith(github.ref, 'refs/tags/')
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}